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Poor Sleep Linked to Weight Gain

in 2-year smartphone sleep tracking study
 
Not sleeping enough or getting a bad night’s sleep over and over makes it hard to control your appetite. And that sets you up for all sorts of health problems, including obesity, heart disease, high blood pressure and Type 2 diabetes.
The link between poor sleep and a greater body mass index (BMI) has been shown in study after study, but researchers typically relied on the memories of the participants to record how well they slept.
Sleep apps on fitness trackers, smartphones and watches have changed all that. In a new study, published Monday in JAMA Internal Medicine, researchers tracked sleep quality for 120,000 people for up to two years.
The results showed sleep durations and patterns are highly variable between people. Despite that, the study found people with BMIs of 30 or above – which is considered obese by the U.S. Centers for Disease Control and Prevention – had slightly shorter mean sleep durations and more variable sleep patterns.
It didn’t take much less sleep to see the effect. People with BMIs over 30 only slept about 15 minutes less than their less weighty counterparts.
There were some limitations to the study. Naps were excluded, other health conditions could not be factored in, and people who use wearable tracking devices are typically younger, healthier and from a higher socioeconomic status than those who do not wear trackers.
“These are quite pricey devices, and remember, they are not approved by the U.S. Food and Drug Administration,” said sleep specialist Dr. Raj Dasgupta, the associate program director of the Sleep Medicine Fellowship at Keck Medicine of the University of Southern California.
“The results would need to be validated by the appropriate FDA-approved devices, and because the study is likely on younger people who are more economically well off, does that really apply to older folks we worry about with poor sleep?” said Dasgupta, who was not involved in the study.
However, Dasgupta added, a major plus for the study is that it did monitor people for over two years, and the results corroborated prior research and were “not surprising.”
“While we cannot determine the direction of association from our study result, these findings provide further support to the notion that sleep patterns are associated with weight management and overall health,” the authors wrote.
“The findings also support the potential value of including both sleep duration and individual sleep patterns when studying sleep-related health outcomes.”

LINK BETWEEN SLEEP AND EATING

There is a scientific reason why a lack of sleep is linked to appetite. When you’re sleep deprived, research has shown, levels of a hormone called ghrelin spike while another hormone, leptin, takes a nosedive. The result is an increase in hunger.
“The ‘l’ in leptin stands for lose: It suppresses appetite and therefore contributes to weight loss,” he said. “The ‘g’ in ghrelin stands for gain: This fast-acting hormone increases hunger and leads to weight gain,” Dasgupta said.
Another reason we gain weight is due to an ancient body system called the endocannabinoid system. Endocannabinoids bind to the same receptors as the active ingredient in marijuana, which as we know, often triggers the “munchies.”
“When you’re sleep deprived, you’re not like, ‘Oh, you know what, I want some carrots,'” said behavioural neuroscientist Erin Hanlon, who studies the connection between brain systems and behavior at the University of Chicago, in a prior CNN interview.
“You’re craving sweets and salty and starchy things,” she added. “You want those chips, you want a cookie, you want some candy, you know?”
A 2016 study by Hanlon compared the circulating levels of 2-AG, one of the most abundant endocannabinoids, in people who got four nights of normal sleep (more than eight hours) to people who only got 4.5 hours.
People who were sleep-deprived reported greater increases in hunger and appetite and had higher afternoon concentrations of 2-AG than those who slept well. The sleep-deprived participants also had a rough time controlling their urges for high-carb, high-calorie snacks.

GET BETTER SLEEP

Want more control over your appetite? Depending on your age, you are supposed to get between seven and 10 hours of sleep each night.
Getting less has been linked in studies to high blood pressure, a weakened immune system, weight gain, a lack of libido, mood swings, paranoia, depression and a higher risk of diabetes, stroke, cardiovascular disease, dementia and some cancers.
So sleep a full seven to 10 hours a night, stick to a regular bedtime and get up the same time very day, even on weekends, experts advise.
Adding exercise to your daily routine is a great way to improve your sleep and improve your health. After finishing one 30-minute physical activity, you’ll have less anxiety, lower blood pressure, more sensitivity to insulin and you’ll sleep better that night.
You can also train your brain to get more restful sleep with a few key steps:
  •  During the day, try to get good exposure to natural light, as that will help regulate your circadian rhythm.
  •  Avoid stimulants (coffee, tea) after 3 p.m. and fatty foods before bedtime.
  •  Establish a bedtime routine you can follow each night. Taking a warm bath or shower, reading a book, listening to soothing music, meditating or doing light stretches are all good options.
  •  Make sure your bed and pillows are comfortable and the room is cool: Between 60 and 67 degrees is best. Don’t watch TV or work in your bedroom; you want your brain to think of the room as only for sleep.
  •  Eliminate all lights – even the blue light of cellphones or laptops can be disruptive. Dull sounds, too. Earplugs or white noise machines can be very helpful, but you can create your own with a humidifier or fan.
Sandee LaMotte      CNN     Monday, September 14, 2020
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10 Ways Sleep Can Change Your Life

What if someone told you there was a magic potion by which you could prevent disease, improve your intellect, reduce your stress and be nicer to your family while you’re all cooped up together during the pandemic?
It sounds too good to be true, as if solving those problems would really require dietary supplements, workout programs, diets, meditation and a separate room to cry alone.
It turns out that sleep, according to numerous studies, is the answer. It’s the preventive medicine for conditions related to our physical, mental and emotional health. And despite how important sleep is, it can be difficult to make it a priority.
“During a pandemic such as Covid-19, there’s a potential to induce or exacerbate many sleep issues,” Dr. Matthew Schmitt, a doctor of sleep medicine at Piedmont Healthcare in Georgia, told CNN.
“A lack of quality sleep not only affects how we feel during the daytime, but can also impair our immune system function, which is vital in protecting us from common viral illnesses.”
A sleep routine is just one of the behaviors that is part of sleep hygiene, a buffet of efforts needed to sleep well that include eating healthy meals at regular times and not drinking too much coffee, said Dr. Meir Kryger, a professor of pulmonary medicine and a clinical professor of nursing at Yale School of Medicine in Connecticut.
“All of these things are really interconnected in terms of their function. All of them are connected to the body clock,” Kryger said. “The body is like an orchestra where there’s an orchestra leader that’s sort of the main timer, but everybody else is playing it together and they’re optimizing what they are doing.”
Once you’ve developed your sleep routine,
here are 10 benefits you could gain from the regimen.
1. Helps your body heal and repair itself
Our nightly shut-eye is our bodies’ time for healing and repairing itself from performing its taxing daily functions.
“Imagine you’re a car or something that’s running for 16 hours during the day,” Kryger said. “You’re going to have to do stuff to get back to normal. You just can’t keep on running.”
During sleep is when we produce most of our growth hormone that ultimately results in bone growth. Our tissues rest, relaxing our muscles and reducing inflammation. And each cell and organ have their own clock that “plays a really important role in maximizing or optimizing how our body works,” Kryger added.
2. Lowers risk for disease
Sleep on its own is a protective factor against disease.
When people get too much or too little sleep, “there appears to be an increased risk of deaths … and other diseases raising their ugly heads,” Kryger said, such as heart problems and diabetes. The healing period during sleep also factors in, as it allows cells that would cause disease to repair themselves.
3. Improves cognitive function
Sleep feeds our creativity and cognitive function, which describes our mental abilities to learn, think, reason, remember, problem solve, make decisions and pay attention.
“As you sleep, memories are reactivated, connections between brain cells are strengthened, and information is transferred from short- to long-term,” said a National Sleep Foundation article on the subject. “Without enough quality sleep, we become forgetful.”
4. Reduces stress
Slumber of great quantity and quality can enhance your mood and also encourage the brain’s ability to regulate emotional responses to both neutral and emotional events.
5. Helps maintain a healthy weight
Getting your beauty sleep can help you to maintain a healthy weight or increase your chances of losing excess fat.
Two hormones control our urge to eat: leptin and ghrelin. Leptin tells us that we’re full, while ghrelin communicates hunger.
When we don’t sleep enough, both hormones veer in the wrong direction, Kryger said — ghrelin spikes while leptin declines, resulting in an increase in hunger and the potential to overeat and gain weight.
Sleep helps our bodies to maintain normal levels of the stress hormone cortisol as well, which determines how we hang on to excess fat.
6. Bolsters your immune system
Kryger has seen the immune systems of patients with sleep disorders fail to normally function. Sleep helps our bodies to produce and release cytokines, a type of protein that helps create an immune response by targeting infection and inflammation.
Additionally, “research done actually years ago showed that when people are sleep deprived, they do not have as vigorous a response to vaccination,” Kryger added.
“As we’re thinking about vaccination that’s being developed” for Covid-19, that kind of research is going to be important.
7. May improve your social life
The emotional benefits of sleep can transfer over into your social life. “Just imagine you don’t sleep enough and you’re cranky,” Kryger said. “Who’s going to want to be around you? Another part of it is being cognitively sharp.”
Adequate sleep can help you to be more confident, be more easygoing and support your efforts to do your part at home, he added.
8. Supports your mental health
Mental health disorders are often associated with substandard sleep and a sleep deficit can lead to depressive symptoms even if the person doesn’t have the chronic disorder, Kryger said.
“Getting the right amount of sleep is really important in possibly preventing a mental illness or the appearance of a mental illness,” he added. And in addition to the benefits for mood and stress regulation, sleeping enough “may make the treatment of the mental illnesses more efficacious if the person sleeps enough.”
9. Reduces pain sensitivity
Extending participants’ sleep time during the night or with midday naps, a 2019 study found, restored their pain sensitivity to normal levels in comparison to sleep-deprived individuals, who had a lower threshold for pain.
How this happens would have to be in the realm of perception, Kryger said, which ultimately traces back to the brain. “The brain is where sleep is,” he explained.
10. Increases your likelihood for overall success
Since sleep can improve our health on all fronts, it consequently can help us be the best versions of ourselves. Healthy cognitive functioning, emotional regulation, coping and social life are all foundational to pursuing and achieving our goals and overall well-being.
By Kristen Rogers, CNN       Tue August 4, 2020
source: www.cnn.com
sleep_snooze

 

People React Better to Both Negative and Positive Events
With More Sleep

Summary:
New research finds that after a night of shorter sleep, people react more emotionally to stressful events the next day — and they don’t find as much joy in the good things. This has important health implications: previous research shows that being unable to maintain positive emotions in the face of stress puts people at risk of inflammation and even an earlier death.
FULL STORY
New research from UBC finds that after a night of shorter sleep, people react more emotionally to stressful events the next day – and they don’t find as much joy in the good things. The study, led by health psychologist Nancy Sin, looks at how sleep affects our reaction to both stressful and positive events in daily life.
“When people experience something positive, such as getting a hug or spending time in nature, they typically feel happier that day,” says Nancy Sin, assistant professor in UBC’s department of psychology. “But we found that when a person sleeps less than their usual amount, they don’t have as much of a boost in positive emotions from their positive events.”
People also reported a number of stressful events in their daily lives, including arguments, social tensions, work and family stress, and being discriminated against. When people slept less than usual, they responded to these stressful events with a greater loss of positive emotions. This has important health implications: previous research by Sin and others shows that being unable to maintain positive emotions in the face of stress puts people at risk of inflammation and even an earlier death.
Using daily diary data from a national U.S. sample of almost 2,000 people, Sin analyzed sleep duration and how people responded to negative and positive situations the next day. The participants reported on their experiences and the amount of sleep they had the previous night in daily telephone interviews over eight days.
“The recommended guideline for a good night’s sleep is at least seven hours, yet one in three adults don’t meet this standard,” says Sin. “A large body of research has shown that inadequate sleep increases the risk for mental disorders, chronic health conditions, and premature death. My study adds to this evidence by showing that even minor night-to-night fluctuations in sleep duration can have consequences in how people respond to events in their daily lives.”
Chronic health conditions – such as heart disease, diabetes, and cancer – are prevalent among adults, especially as we grow older. Past research suggests that people with health conditions are more reactive when faced with stressful situations, possibly due to wear-and-tear of the physiological stress systems.
“We were also interested in whether adults with chronic health conditions might gain an even larger benefit from sleep than healthy adults,” says Sin. “For those with chronic health conditions, we found that longer sleep – compared to one’s usual sleep duration – led to better responses to positive experiences on the following day.”
Sin hopes that by making sleep a priority, people can have a better quality of life and protect their long-term health.
Journal Reference:
Nancy L. Sin, Jin H. Wen, Patrick Klaiber, Orfeu M. Buxton, David M. Almeida. Sleep duration and affective reactivity to stressors and positive events in daily life.. Health Psychology, 2020; DOI: 10.1037/hea0001033
University of British Columbia. “People react better to both negative and positive events with more sleep.”  ScienceDaily, 15 September 2020
Materials provided by University of British Columbia. Note: Content may be edited for style and length.  September 15, 2020
 


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How To Get a Good Night’s Sleep Right Now

“Doesn’t it feel like the zombie apocalypse?” I recently asked my boyfriend. We were taking our daily sanity stroll when suddenly the sleep-deprived eyes peeking over surgical masks started to feel extra eerie. I may have even traumatized a small child in a window when I waved excitedly, forgetting a big black piece of fabric was covering half my face and I hadn’t bothered with concealer.

Honestly, the lack of concealer is probably what drove the poor thing to run. The insomnia has been brutal lately.

I’m certainly not alone. Everyone I speak to, from my grandmother to Kaia Gerber, mentions how badly they’ve been sleeping. That’s because the current situation is a veritable perfect storm for sleeplessness, and that goes for sassy 80-year-olds and teen top models alike.

“The biggest issue is stress and anxiety: worrying about your health, worrying about your job, worrying about your finances,” says Dr. Atul Khullar, medical director at the Northern Alberta Sleep Clinic and senior consultant at MedSleep.

Then there are the changes to your routine. “Being more restrained, not being able to get out as much, less light, less exercise, worse eating habits — it’s just a hurricane of things that can disrupt sleep.”

While we can’t control what’s going on in the world, there are some things we can do to help rest our minds and bodies, and get that much needed shut-eye.

Make sleep a priority

In our performance-obsessed culture, rest is often undervalued. A chronic lack of sleep is linked to a whole host of issues including heart disease, stroke, obesity and diabetes. “Some studies show you’re less likely to catch things, including the coronavirus, if you get proper sleep because sleep deprivation weakens your immune system, even in the short term,” says Khullar. Poor sleep also hikes stress hormones, which make it harder to deal with everything going on, on top of making us more irritable. “Sleep is going to get your entire family in a better mood,” says Alanna McGinn, sleep expert and founder of the Good Night Sleep Site. “We’re all stuck together, so we need to be as happy as we can.”

Stick to a schedule

With no commute to worry about, it’s tempting to sleep in more and, since you don’t have to wake up so early, you might be going to bed later, too. But all of this can throw off your sleep and your energy levels throughout the day. “A lot of people don’t have the discipline to keep the structure, so we find people not keeping consistent bedtimes or sometimes napping excessively,” says Khullar. McGinn says to set an alarm. “It doesn’t have to be as early as when you were going to work, but getting up at a more reasonable hour builds up more drive for sleep, which will help you fall asleep a lot better at night.” Regular exercise also helps with that and promotes a deeper, more restful sleep.

Make your bed sacred

Both experts are adamant your bed should be for sleep only. “Protecting your sleep space provides a positive association between sleep and your bed,” explains McGinn. “Now our bedrooms are becoming our home office and that can make falling asleep even harder.” What happens is your brain no longer equates being in bed with just sleeping, so you lose that signal to wind down. “If you start doing many other activities in bed, you can get very strong behavioural insomnia,” warns Khullar. This is also why you shouldn’t lie awake for long periods. “We should be sleeping 85 per cent of the time we’re in bed, so if you’re struggling with that, it’s OK to get out of bed for 10 to 15 minutes,” says McGinn. “Do a quiet activity in low light like reading or doing a puzzle — don’t turn on every light or check your email — then try again.”

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Optimize your sleep space

There are plenty of small tweaks that can make your bedroom more conducive to sleep. Mornings are getting brighter, so incorporating blackout drapes can help keep your room dark. There’s also the matter of temperature. “The best sleeping temperature is usually a little cooler than people think: between 16 and 19 C,” says Khullar. McGinn suggests switching to more breathable bedding and moisture-wicking materials like bamboo, eucalyptus or linen. And if you sleep with a partner, don’t be afraid to customize your side. “You don’t need to have the same pillow, comforter and sheets,” she says. Finally, pay attention to how your room smells, too. Certain scents like lavender and camomile have been shown to promote sleep, so don’t discount those trendy diffusers and pillow sprays.

Implement a bedtime ritual

Pre-pillow quiet time is key to telling your brain you’re about to go to bed, say the pros. “It can be 10 minutes or 40 minutes, but there should be some time where you don’t do any other activities except prepare for bed,” says Khullar. For McGinn, that means putting down devices and steering clear of all things stressful. “We need boundaries on what we’re absorbing with the news and the scary stuff that we’re bringing into our brains right before going to bed,” she says. You also want to limit screen time in the evening as the artificial light confuses your internal clock. Things like meditation apps or relaxing podcasts can help get you into a calmer state.

Give your body a break

Another important part of prepping for bed is what you eat. Avoid big meals at least four hours before bed so that your body is not focused on digestion. “A lot of people are turning more to carbs and desserts right now, and if your body is not used to that it might have a harder time metabolizing it,” says McGinn. She suggests having sweets earlier in the day so that you’re not hyped up on sugar later. Many of us are also consuming more alcohol these days. “Alcohol is probably one of the worst things you can do for your sleep,” says Khullar. “It can put you to sleep, but that wears off quickly, and the sleep it gives you is artificial and not restful. Long term, it damages your ability to sleep.” What about weed? “If cannabis is helping you sleep, then maybe there’s something else that you need to look at, such as anxiety, depression or chronic pain,” says Khullar. “As a general rule, we don’t recommend people use anything to help them sleep without addressing it and getting assessed by a medical professional.” Many sleep clinics offer virtual consultations right now, so if you try these tips and still find yourself sleepless, reach out for help. From coping with the stress to staying healthy, you need your rest more than ever.

By Katherine Lalancette     Mon., June 22, 202
Katherine Lalancette is the beauty director of The Kit, based in Toronto.
Reach her on email at kl@thekit.ca or follow her on Twitter: @kik_tweets


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If You’re Not Sticking To A Regular Sleep Schedule, You’re Hurting Your Health, Study Says

Ok, I admit it. I often stay up late on weekends, catching up on TV or seeing friends, then decadently allow myself to slumber for hours past my regular wake-up time the next morning.

To a diehard night owl like me, this is delicious freedom, a sort of personal protest against the rigidity of the obnoxious workday alarm.

Sound familiar? If so, fellow snooze buddies, it turns out our lack of a regular sleep routine is hurting our health.

A new study published Monday found changing your regular sleep-wake time by 90 minutes — in either direction — significantly increases your chance of having a heart attack or heart disease.
A regular sleep time was defined in the study as less than 30 minutes difference, on average, across seven nights.

“Compared with people who had the most regular sleep time, those with the most irregular sleep time — more than a 90 minute difference on average across seven nights — had more than a two-fold increased risk of cardiovascular disease over a 5-year period,” said study author Tianyi Huang, an assistant professor of medicine at Harvard Medical School.

The link remained strong even after controlling for cholesterol, blood pressure and other known cardiovascular risk factors, as well as sleep issues such as insomnia, sleep apnea and sleep duration.
That suggests, Huang said, that high day-to-day variability in sleep duration or timing may be a “novel and independent cardiovascular risk factor.”

“That’s huge,” said Dr. David Goff, who directs the division of cardiovascular sciences at the United States National Heart, Lung and Blood Institute.
“One out of three people in the US die from heart disease, and 60% of us will have a major cardiovascular disease event before we die,” said Goff, who was not involved in the study.
“People are living busy, stressful lives and not getting a lot of sleep during the week,” Goff said. “Then they are trying to get catchup sleep on the weekend, and that’s not a healthy pattern.”

The link between sleep and heart

The cardiovascular system — including heart rate, blood pressure and vascular tone — operates on a strong circadian rhythm to maintain normal functioning.

Messing with our internal sleep clock “has been linked to cardiovascular risk factors like hypertension, insulin resistance or diabetes,” Huang said, “but this is the first study to link an irregular sleep pattern pattern with cardiovascular disease.”

The study followed more than 2,000 people ages 45 to 84 without any cardiovascular disease over a five-year period. After a baseline exam, follow-up physicals measured any lifestyle, medication or disease changes, while a sleep study tested for sleep disorders like apnea.

Then the participants wore a sleep wrist tracker for seven consecutive nights.

“About a quarter of people in this age range didn’t have a regular time for going to sleep,” Goff said.

Since many of the participants were retired, it was surprising to find some 500 people had significantly disrupted sleep schedules.

While it may appear this link is strongest for the elderly, that may not be the case. A previous analysis of 53 studies on people age 18 and up found younger age to be more consistently associated with a variable sleep cycle.

“This sleep irregularity may be even more common among younger people,” Huang said. “Younger people may have more demands from study and from work, and those may also influence whether they can have a regular sleep pattern or not.”

If that becomes a habit in life, the results could be dangerous. That’s because the study also found a linear upward link between disrupted sleep cycles and heart issues.

“The more you sleep irregularly, the higher the risk you have,” Huang said.

Better sleep habits

The good news is that you can do something about your poor sleep habits.

Get moving. Exercise is key to promoting good sleep. As little as 10 minutes a day of walking, biking or other aerobic exercise can “drastically improve nighttime sleep quality,” according to the National Sleep Foundation.

Strive for cooler temperatures. Make sure your bed and pillows are comfortable, and the room is cool: Between 60 and 67 degrees is best. Don’t watch TV or work in your bedroom. You want your brain to think of the room as only for sleep.

Avoid certain food and drink. Avoid stimulants such as nicotine or coffee after mid afternoon, especially if you have insomnia. Alcohol is another no-no. You may think it helps you doze off, but you are more likely to wake in the night as your body begins to process the spirits.

Develop a routine. Taking a warm bath or shower, reading a book, listening to soothing music, meditating or doing light stretches are all good options.

Be good to your circadian rhythm. “Like your mom always told you, you should have a regular bedtime and a regular time for getting up in the morning,” advised Goff.

Keep yourself in the dark. Be sure to eliminate all bright lights, as even the blue light of cellphones or laptops can be disruptive. If that’s hard to accomplish, think about using eye shades and blackout curtains to keep the room dark. But during the day, try to get good exposure to natural light, as that will help regulate your circadian rhythm.

Follow these steps, and you’ll be well on your way to improving your sleep habits and your health.

By Sandee LaMotte, CNN      March 2, 2020
source: www.cnn.com

 

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Study Finds Link Between Dementia And Lack Of Sleep

A growing body of research suggests poor sleep is tied to impaired thinking and dementia in older adults. Now a new study may shed light on why.

Researchers at the University of Toronto have found a potential explanation of what disrupted sleep does to the human brain. They studied 685 adults older than 65, who participated in two large U.S. studies, and looked at their sleep patterns, their performance on thinking tests and, later, their brain-tissue samples after the participants died.

The researchers’ findings, published Wednesday in the journal Science Advances, indicate disrupted sleep may contribute to changes in a type of immune cell in the brain called microglia, which in turn appear to be related to poorer cognitive functions, such as memory and the ability to reason.

While further research is needed to determine whether fixing people’s sleep problems can prevent or reverse cognitive decline, Andrew Lim, one of the authors of the study, said fragmented sleep should not be ignored.

Many people believe “having bad sleep is just part of aging, and it’s something that’s annoying but to be tolerated, rather than aggressively managed or aggressively investigated,” said Dr. Lim, an associate professor of neurology at the University of Toronto and sleep neurologist at the Sunnybrook Health Sciences Centre. “This adds one more reason to take sleep [problems] seriously and to look for your treatable causes and to address them.”

This study builds on previous research, including studies on rodents and genetic studies, that suggest microglia play a role in the link between poor sleep and cognitive impairment and dementia. Microglia normally help fight infections and clear debris from the brain. But dysfunction of microglia appears to be involved in the development of Alzheimer’s disease, Dr. Lim said.

In the study, researchers recorded participants’ sleep disruptions by having them wear wristwatch-like actigraphy devices, which could detect subtle signs of them awakening at night, even when participants themselves were unaware. The participants were asked to wear these devices for 10 days, once a year, for a median period of two years.

Participants also performed a series of cognitive tests annually. They agreed to donate their brains for research after their death, and researchers were able to examine their microglia in two ways. First, since activated and resting microglia differ in appearance, researchers were able to determine the density and proportion of activated microglia by looking at participants’ brain tissue under a microscope, Dr. Lim said. Then, they examined patterns of gene expression to identify “older” versus “younger” microglia – that is, whether the microglia appeared as though they came from an older person from a genetic perspective.

The researchers found connections between all three variables. Individuals who had higher levels of sleep fragmentation had a higher proportion of activated microglia and gene expression characteristic of older microglia. This was the case both for participants who had Alzheimer’s disease and those who did not. Those with poorer sleep also performed worse on their cognitive tests. And participants who had a greater proportion of activated microglia or genetically older microglia also had poorer cognitive test results.

Professor Teresa Liu-Ambrose of the University of British Columbia, who was not involved in the study, said the findings align with what researchers know thus far about the importance of sleep and the possible contribution of poor sleep to Alzheimer’s disease.

Dr. Liu-Ambrose, the Canada research chair in physical activity, mobility and cognitive neuroscience at UBC, said good-quality sleep is believed to allow the brain to clear itself of toxic beta-amyloid protein, the buildup of which is one of the characteristics of Alzheimer’s disease. And, she said, there is also good evidence to suggest an accumulation of beta-amyloid can further contribute to disrupted sleep.

“It’s a vicious cycle,” she said.

“What [the new study] really does show is that it’s important to protect your sleep overall,” she said. “[Sleep quality] does seem to have very direct effects on the brain, both acutely, but also chronically.”

 

WENCY LEUNG    HEALTH REPORTER     DECEMBER 11, 2019
FOLLOW WENCY LEUNG ON TWITTER @WENCYLEUNG


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Seeking Better Sleep Under a Weighted Blanket

Toddlers have long used “blankies” to help them feel secure, dry tears, and fall asleep quickly.

Now, some adults with insomnia, depression, and anxiety are rediscovering that feeling of security — for a price – in the form of weighted blankets.

But can a little extra weight really help you sleep better?

Leslie Kosco, 56, an oncology nurse in Indianapolis, thinks so. For the past 3 months, she has snuggled under her light gray, 20-pound weighted blanket. She bought it after reading that it could improve sleep and lower anxiety.

“It gives me the feeling that someone is hugging me, and making me feel calmer,” she says. “I think my sleep is better.” The anxiety? “Well, you know,” she laughs. She works with cancer patients, and she and her partner have an active 9-year-old.

She has no idea how the blanket works but is happy it does.

What Is a Weighted Blanket?

Weighted blankets are usually filled with plastic pellets to add weight, ranging from about 4 to 25 pounds. You pick the heaviness of the blanket based on your own weight. Prices range from about $120 to $249 or more.

People compare a weighted blanket’s “hug” to the feeling of the X-ray ”apron” the dentist puts on you, says David Fuchs, CEO of BlanQuil, one of the makers of weighted blankets.

Other companies include Gravity Blanket, Mosaic Weighted Blankets, and SensaCalm. Fuchs launched his product in December 2017, after he searched for something to help his adult daughter improve her sleep.

“It secures you in one place,” Fuchs says. “It seems to help people sleep by the calming effect of feeling like they are being held.”

Mike Grillo, managing director of Gravity Blanket, says they shipped more than 50,000 weighted blankets in 2017. That was after the Brooklyn-based startup raised $4.7 million on Kickstarter from late April to late May, 2017.

Laura LeMond says she founded Mosaic Weighted Blankets in 2010 after designing a blanket to meet her own needs for better sleep.

She says the trend has taken off in the past 2 years. At least a half-dozen companies sell them now.

What the Research Shows

Grillo says there aren’t many independent studies of the blankets for adults that are reviewed by independent researchers and published in reputable medical journals.

In one study funded by the blanket makers, Swedish researchers found that 31 men and women with moderate insomnia who used the blankets for 2 weeks reported a calmer night’s sleep with fewer movements. They believe the blankets helped them sleep more comfortably and securely, and they had higher-quality sleep.

Researchers have looked at how the blankets affect mental health patients. A study from 2015 found that after 32 adults used a 30-pound blanket, 63% reported lower anxiety and 78% preferred the weighted blanket to calm down.

Weighted blankets offer deep pressure stimulation, a form of touch pressure that feels like a firm hug, a massage, or swaddling. While research on weighted blankets is sparse, deep pressure stimulation has been found to calm adults and children with anxiety, autism, and attention difficulties, researchers say.

A Doctor Weighs In

Raj Dasgupta, MD, assistant professor of clinical medicine at the University of Southern California and a spokesman for the American Academy of Sleep Medicine, says the blankets may help people with chronic pain sleep better, as well as those with anxiety or depression.

It gives me the feeling that someone is hugging me, and making me feel calmer.

Leslie Kosco of Indianapolis
“It’s like having the best hug for a long period of time,” he says. And, he says, it may be ”a good alternative to life-long sedative hypnotic medications (sleeping pills) at night.”

But he cautions that the weighted blanket is not the cure-all for improving sleep.

“You also have to pay attention to the foundation of good sleep hygiene,” he says. That means using the bedroom only for sleep and sex, turning off electronics before bedtime, and keeping the lighting, sounds, and temperature conducive to sleep.

While some research has looked at 30-pound blankets, there is no data behind the “right fit.” The companies suggest you pick one that is about 10% of your body weight so it will not be too heavy, says LeMond of Mosaic. “And for kids, it’s 10% of body weight plus 1-2 pounds,” she says.

Grillo similarly suggests a target of 7% to 12% of your body weight.

By Kathleen Doheny              FROM THE WEBMD ARCHIVES

SOURCES:
Article: Seeking Better Sleep Under a Weighted Blanket
Leslie Kosco, 56, oncology nurse, Indianapolis.
Mike Grillo, managing director, Gravity Blanket.
David Fuchs, CEO, BlanQuil.
Laura LeMond, founder, Mosaic Weighted Blankets.
Journal of Sleep Medicine & Disorders: “Positive Effects of a Weighted Blanket on Insomnia.”
Occupational Therapy in Mental Health: “Exploring the Safety and Therapeutic Effects of Deep Pressure Stimulation Using a Weighted Blanket.”
Consumer Reports: “Sheets Buying Guide,” “Higher Thread Count Doesn’t Guarantee Better Sleep.”
Harvard Health Publishing: “What type of mattress is best for people with low back pain?”
Mayo Clinic: “Pregnancy week by week,” “Sleep Apnea.”
National Sleep Foundation: “Find Out What You Really Should Be Wearing to Bed,” “Hear,” “Touch,” “The wrong pillow can be a real pain in the neck — not to mention a barrier to a good night’s sleep. So find the right fit,”  “How to Choose Your Ideal Sheets,” “Americans’ Bedrooms Are Key To Better Sleep According To New National Sleep Foundation Poll,” “Choosing a Mattress: Everything You Need to Know.”
The Better Sleep Council: “Starfish or Freefall? What Your Sleep Position Can Tell You.”


REFERENCES: 
National Institute of Mental Health: “Generalized Anxiety Disorder.”
MedlinePlus: “Generalized Anxiety Disorder.”
National Institute of Mental Health: “Role of Research in Improving the Understanding and Treatment of Anxiety Disorders.”
National Institute of Mental Health: “Treatment of Anxiety Disorders.”
National Institute of Mental Health: “How to Get Help for Anxiety Disorders.”
Sherman, K. Depression and Anxiety, May 2010.
Pilkington, K. Autonomic Neuroscience, October 2010.
Lakhan, S. Nutrition Journal, October 2010.
Saeed, S. American Family Physician, August 2007.
National Institute of Mental Health: “Panic Disorder.”
National Institute of Mental Health: “Post-Traumatic Stress Disorder.”
National Institute of Mental Health: “Obsessive-Compulsive Disorder.”
National Institute of Mental Health: “Social Phobia.”
National Institute of Mental Health: “Specific Phobias.”

WebMD Health News Reviewed by Neha Pathak, MD on April 02, 2018

 

source: www.webmd.com
weighted-blanket-for-adults-laying-down-side

Can a Weighted Blanket Help You Sleep Better?
We Tested One For a Month to Find Out

Judging by social media and other chatter, one of the impactful talks at TED 2019—held in Vancouver in April—was Matthew Walker’s “You’re Not Getting Enough Sleep—and it’s Killing You.”

Walker, a neuroscientist at the University of California, Berkeley, has been encouraging people to take sleep more seriously for a few years now, arguing that, short-term, a lack of sleep messes with our memory, appetite and immune systems, and, long-term, could make us more vulnerable to depression, anxiety, heart disease, Alzheimer’s and cancer. That got people’s attention.

Shouldn’t we already know that sleep is an important thing, though? We all know the joy of a solid, uninterrupted eight hours, right? And, on the flip side, anyone who’s ever experienced a sleep disorder—roughly 40 per cent of Canadians, including me—is keenly aware that it’s not just the frustration in the middle of the night that’s a problem, it’s the fact that the next day’s largely a write-off, thanks to a haze of brain fog.

What is it that keeps people like me up? Anxiety? Stress? Depression? It might be a complex interplay of things, explains Dr. Christine Purdon, Director of Clinical Training of the PhD program in Clinical Psychology at the University of Waterloo and co-director of the Anxiety Studies Division, who says that insomnia is characteristic of a number of mental health problems.

“Some people have trouble sleeping because their thoughts race and they’re worried that they’re not going to be able to manage the challenges of the next day,” says Purdon. “So, they’re trying to problem-solve, but they can’t do anything about it at two in the morning in their bed, so the thoughts keep racing and then they get anxious. And you can’t sleep when you’re anxious because you’ve got cortisol running through your body.”

Cortisol is a steroid hormone that jacks up our blood sugar, suppresses our immune system and gets us ready to run away from predators—a built-in alarm, starting at the amygdala, a part of the brain that sends distress signals to other parts of the brain. Although our modern anxiety is more likely to be about deadlines or office politics than sabre-tooth tigers, we still make cortisol when the amygdala senses danger.

Purdon’s description is exactly how I feel at 5 a.m., hopelessly trying to get back to sleep with Jedi mind tricks. I should say, though, that I’ve been pretty lucky to have fewer (and shorter) bouts of insomnia over the past several years. Whereas, I once had torturous two- or three-week spells a few times a year, it’s down to a sporadic few nights a month. I attribute a lot of that to keeping more regular hours and paying attention to the quality of mattresses and light “noise” in the room.

I’d like to get it down to zero, though, so I’m always on the look-out for new strategies for better sleep. As such, when Sleep Country Canada offered to send me a Snuggable Weighted Blanket ($199 plus tax) to try out, I took them up on it.

Day One: The package tells me this 230-thread count, 15-pound blanket will “create a feeling of being hugged,” as well as “reduce chronic stress and high levels of anxiety” and “may increase serotonin and melatonin levels and decrease cortisol levels…to promote a better sleep.” The key word here is “may.” There really isn’t a lot of peer-reviewed research confirming the many anecdotal stories circulating that it’s helpful for anxiety and/or sensory processing disorders.

First night: Even if you think you have a pretty good idea as to what 15 pounds feels like, picking up this blanket produces cognitive dissonance—it’s way heavier than it looks. It’s also only five feet long, so you have to choose between covering your chest or your feet. Initially, I thought it was a non-starter, since it felt less like “hugging” and more like being trapped. Despite my concerns, I slept well.

Week Two: The weird thing is, you adjust to the weight pretty quickly—for me, I was actually looking forward to the sensation of added weight by the end of the first week. I was sleeping more on my back and moving around less, which is obviously a good thing

Week Three: Insomnia strikes. For me, it’s never about getting to sleep but, rather, staying asleep. I’ll wake up at 4 a.m. and that’s when the thoughts start racing. This generally lasts several hours, but, all four nights that it happened to me that week I was able to get back to sleep in under 15 minutes.

Month’s End: After a month with no insomnia, I’m a convert. I still have some trepidation, since I’ve had a lot of vivid dreams—sometimes too vivid. I’m also worried about whether or not it’ll be too hot in, say, mid-July.

I’m also worried it might not last. What if my good sleeps are just a placebo effect? As Dr. Purdon points out, without more studies, we can’t know. She can, however, imagine a theory for how a weighted blanket might work to alleviate some symptoms of anxiety.

“I have heard of people using weighted blankets and enjoying them,” she says. “I think that if it gives a safety signal—like that kind of warm sense of being bundled—I think it’s possible that sensation can make somebody feel safer and down-regulate the amygdala and get rid of the anxiety, which could help you get back to sleep.”

Still, Purdon warns that people shouldn’t get their hopes up that a blanket, no matter how good, will be life-transforming, even if future research does support the theory.

“I do have a fair bit of skepticism about things that come onto the market making big claims,” she says. “I don’t think there are quick fixes for anything. I think it’s great if some people try something and it helps them. But I don’t think something like that is going to cure anybody’s anxiety problems, that’s for sure.”

By Christine Sismondo        Special to the Star        Sun., May 5, 2019
Christine Sismondo is a Toronto-based writer and contributor to the Star. Follow her on Twitter: @sismondo


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The Numbers That Matter Most for Staying Healthy

Health often seems like a numbers game. What’s your blood-sugar level? How many calories are you eating? And are you getting the right percentage of macros (or macronutrients)? The problem is that sometimes we track, count and obsess over numbers that don’t matter very much for our overall health. Or worse, we ignore numbers that do matter.

I was curious about which numbers my fellow dietitians consider the most important. I sought feedback from 20 experts who work in either hospitals or private practice. Here are the data that have the most clinical importance, and the ones they tell their patients to ignore.

The numbers that matter most:

Half your plate. Instead of counting every calorie, dietitians recommend that clients simplify food decisions by using a plate model, where you choose the right proportions of each food. That means filling half your plate with vegetables and some fruit; one quarter with protein-rich foods such as fish, poultry or beans; and the final quarter with whole grains such as quinoa or brown rice. The Healthy Eating Plate from Harvard University is a great example of a plate model.

25 to 35 grams. That’s how much fibre a day we need for optimal health, but most Americans get just 16 grams per day. Getting enough fibre helps lower cholesterol and blood sugar levels, prevents certain cancers, eases constipation and keeps you feeling full for longer, which is helpful for weight management. Get more fibre from vegetables, fruit, beans, nuts, seeds and whole grains (or just follow the healthy-plate model, mentioned above).

7 to 8 hours. Are you getting that much sleep every night? Lack of sleep has short-term consequences, such as poor judgment, increased risk of accidents, bad moods and less ability to retain information. Poor sleep over the long term has been linked to an increased risk of obesity, Type 2 diabetes and heart disease. So, turn off the TV, power down your devices and get the rest your body needs.

150 minutes. That’s the recommendation for how much physical activity (equivalent to 2.5 hours) you should get each week, preferably spread through the week in increments of at least 10 minutes. This level of activity helps combat heart disease, stroke, Type 2 diabetes, obesity, dementia and cancer.

100 mg/dl. Your doctor can test your fasting plasma glucose level to check for Type 2 diabetes (a normal reading is less than 100 mg/dl). Often called a “lifestyle” disease, Type 2 diabetes is largely preventable by eating well and getting enough exercise. If you have diabetes, lifestyle changes can actually help you reverse the diagnosis — but first you need to know your number. A diagnosis of prediabetes is 100 to 125 mg/dl., and a diagnosis of diabetes is 126 mg/dl. or higher.

120/80 mmHg. High blood pressure is known as the silent killer because it often has no obvious symptoms. Left untreated, high blood pressure is a risk factor for having a heart attack or a stroke. That’s why you need to get your blood pressure checked and know whether you are at risk. Normal blood pressure is 120/80 mmHg (millimetres of mercury) or less. Elevated blood pressure is 121 to 129 over 80. High blood pressure is 130 to 139 over 80 to 89.

fat skinny health

The numbers that don’t matter very much:

Size 8. Too many people have a diet goal to be a specific size, but the numbers on clothes are inconsistent and arbitrary. A size 4 at one store may fit like a size 8 at a different store, which makes shopping frustrating — and makes your pant or shirt size a very poor measure of your health. If you don’t like the number on your pants, cut the label out. Focus on how you feel, not the number on the clothing tag.

50 years old. Or 86. Or 31, 75 or 27. Age is just a number. You are never too young to need to take care of yourself, or too old to start an exercise program or change what you eat. A healthy lifestyle is important at every age.

1,800 calories. Or whatever number you choose. You don’t need to count every calorie you eat — it’s tedious, often flawed, and it doesn’t help you choose nutrient-dense foods. If you had the choice between 100 calories of broccoli or fries, you’d probably choose the fries, right? But that wouldn’t provide much nourishment and oversimplifies eating into one silly number. If you are a lifelong calorie counter, there’s no need to give it up, but remember that it’s not the most vital number for your overall health.

40-30-30. Or any other ratio of macronutrients, the umbrella term for carbs, protein and fat. Keeping track of macros is a popular diet, and if it works for you, fantastic! But some dietitians warn that it’s difficult to know the precise macro content of every food you eat, which leads to obsessive use of food diaries and macro-counting apps. This promotes a dieting mentality, rather the concept of enjoying food from a balanced plate. There’s nothing magical about counting macros. It’s just a diet.

Below 25. The body mass index (BMI) is a clinical tool that groups people in categories of normal weight, overweight or obese depending on their height and weight. But BMI doesn’t take age, gender or bone structure into account, and athletes are often classified as overweight because BMI doesn’t distinguish between muscle and fat! So, don’t rely on this number as your primary measure of health.

By CARA ROSENBLOOM       The Washington Post       Thu., July 5, 2018
 


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Small Changes To Make That Can Have a MAJOR Impact on Health

Big changes like cutting out all carbs or training for a marathon are great—but you don’t have to remake yourself to have a dramatic impact on your health. Try a few of these baby steps to get you started in the right direction.

Add a fruit or veggie to every meal

Not ready to give up a bad habit yet? Start by creating an easy good-for-you habit instead. “Less than one in three individuals gets even two servings of fruits and vegetables per day,” says Erin Palinski-Wade, RD, CDE, LDN, CPT, author of 2 Day Diabetes Diet. “By adding one serving to each meal, you can get in at least three servings per day and be ahead of the curve. A half of a banana on your breakfast cereal, a small side salad with your sandwich at lunch, and adding 1/2 cup of cooked veggies into your pasta can pack in more fiber, antioxidants, and nutrients—all which have been found to reduce the risk of heart disease, type 2 diabetes, and even certain cancers.”

Work on your hips

“If you have a sedentary job, focus on some hip opening exercises to start and end your day,” suggests trainer Jonathan Hertilus, ACE, owner of BFF Bootcamp in Nutley, NJ. “For instance,” says Hertilus, “hip bridges can be done anywhere—even in bed—as soon as you wake up or right before you go to sleep.” Just a few minutes of hip exercises can do wonders to keep your back and core muscles engaged.

Lose a little weight

Setting a goal to lose 40 pounds or more to get out of the “overweight” category can be daunting. So aim for smaller, more attainable goals, which can make a big difference in your overall health. “Small steps can be very powerful,” says Jill Crandall, MD, professor of endocrinology at Albert Einstein College of Medicine and an attending physician at Montefiore Health System.” For people who are at increased risk for type 2 diabetes, which includes many adults who are overweight and have a family history of diabetes, modest changes can reduce the risk of developing diabetes by over 50 percent.” Dr. Crandall suggests focusing on losing about 7 percent of your overall weight—or about 15 pounds for a 200-pound person.

Lighten your load

Cleaning out your purse or backpack could go a long way toward preventing neck, back, and shoulder pain. When you are carrying things, balance your load, and avoid backpacks or purses with more than 10 percent of your body weight,” suggests Robert Hayden, DC, PhD, a chiropractor in Griffin, Georgia.

Be careful with condiments

You might want to take a second to consider before you slather your next salad in ranch dressing. “Ketchup, barbecue sauce, mayo, and salad dressings can all be a major source of calories, sodium, fat, and added sugar,” says Palinski-Wade. “Opt for condiments on the side, rather than on your meal and read those labels!”

Skimp on the sugar—and pump up your probiotics

More and more studies show that sugar wreaks havoc on your health, including slowing your metabolism, impairing brain function, and increasing your risk of heart disease and cancer. But there are other health issues you can keep at bay with a little less sugar and a little more healthy bacteria. “Decreasing intake of sugar and processed food as well as taking probiotics can help decrease yeast infections,” says Jessica Shepherd, MD, MBA, OB/GYN, director of minimally invasive gynecology at University of Illinois at Chicago.

Straighten up your sleep habits

A bad sleep posture could make for more aches and pains when you’re awake. “Most of us don’t really think much about posture while we are asleep—but really, posture while you are asleep is at least as important as when you are awake because the muscles that protect your joints are quite loose while you are asleep,” says Dr. Hayden. “I recommend sleeping in a side posture whenever possible. Make sure your pillow is firm and just high enough to keep your head level with the mattress so that your head is neither pushed up nor down. Use a body pillow to hug, throwing your upper arm and upper knee over the pillow so that the pillow supports the weight of the extremities while you are asleep. This prevents you from inducing torque into the lumbar spine and offloads the weight of the upper extremity from the structures at the base of the neck. This simple approach to rest keeps your body straight and as stress free as possible while you catch those zzzs.”

Drink half your weight in water

We should all be drinking more water, but the old saw about eight glasses of eight ounces of water doesn’t work for everybody. The better formula? “Take your weight in pounds and divide by two, and you will get the number of ounces of water you should drink every day,” says Mitzi Dulan, RD, founder of simplyFUEL. “Start your day with a big glass of ice water. Ice cold water can boost your metabolism slightly because it takes energy for your body to get it to room temperature—drink six glasses of 16 ounces of cold water and burn an extra 100 calories per day.”

water

 

Stop the midnight snacking

“Avoid eating after 8 p.m.,” says Dulan. “Often times, late-night eating is really boredom eating. This helps your body focus on burning the fat during the night instead of trying to work to digest the food you just ate before nodding off.”

Shut off your electronics an hour before bedtime

Those last hours before bed may seem like the perfect time to catch up on some work or binge watch a little of your favorite show, but experts say that the light emanating from your screens could be disrupting your sleep. That wavelength of light disrupts melatonin production, and tricks your body into thinking it’s daylight, according to Mark Buchfuhrer, MD, medical director of the Comprehensive Sleep Center at Good Samaritan Hospital in Los Angeles. The fix? Skip the screens and tuck into a good book, do relaxed stretching, or find another way to unwind in the last hour before your bedtime.

Trade refined carbs for whole grains

“Most people eat plenty of grains, but most Americans consume only one serving of whole grains per day,” says Palinski-Wade. “By swapping out a few refined grains for whole grains, you may reduce your waist circumference and reduce the risk of heart disease and diabetes. If you use white bread for a sandwich, switch to rye. If you like rice, opt for brown rice over white rice. A simple switch can add up significantly.”

Take breaks when you’re traveling

Whether you travel by car or plane, taking frequent breaks to walk and stretch is essential. When flying by air, it can reduce your risk of developing a dangerous blood clot in your leg, called a deep vein thrombosis. “I coach our patients who are driving long-distance to get out of the vehicle periodically and walk around it a few laps,” Dr. Hayden says. “Find a bumper that is the right height to put one foot on it. Step back about two feet, square the pelvis, and lean toward the foot that is on the bumper. This has the effect of a hurdler’s stretch, and it will help stretch those gluteals on which you have been sitting as well as the quadriceps and many of the extensor muscles in the back. Always stretch both sides—if you leave one side tight, you may find yourself walking in circles!”

Cut down on the cocktails

Those studies that show red wine’s positive health benefits may encourage us to raise a few more glasses, but there are really good reasons to limit your alcohol intake, including increased risk of high blood pressure and high cholesterol levels, and obesity. Cutting back on the booze can decrease the risk of many different kinds of cancer, including breast cancer, according to Dr. Shepherd. For women, one drink a day seems to be the healthy max, while men can have two.

Start squatting

“Everyone asks me to recommend one exercise that everyone can do to improve their overall health,” says Pat McGuinness, personal trainer at the MAX Challenge in Montclair, NJ, and regional director of programming for New York Sports Clubs. “My answer is always squats! Everyone can do them—modifications are easy—and leg muscles make up more than 60 percent of our total body composition, which means you get more bang for your buck!”

Walk for five minutes every hour at work

Studies have shown that a sedentary lifestyle can wreak havoc on your health. If you can’t get a standing desk to help you limit your time on your seat, make sure you take a five-minute walk break every hour. That can help you minimize the impact of sitting on your health, and ensure you get even more than the doctor-recommended 150 minutes of exercise per week. That can help you reduce the risk of type 2 diabetes, according to Dr. Crandall.

Swap soda for fruit-spiked water

Whether it’s diet or sugar-filled, study after study shows that soda isn’t the best beverage—unless you want to gain weight, increase your risk of developing diabetes, cancer, or heart disease, and reduce your bone density. But you don’t have to sacrifice flavor if you give up your soda. “Infuse water with fruit for a tasty alternative that’s sure to impress and refresh,” says McGuinness.

BY LISA MILBRAND
source: www.rd.com


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Fun Fact Friday

  • Dark chocolate and cheese have antibacterial properties that inhibit tooth decay, according to experts.

  • Your body is actually designed to get 4 hours of sleep twice per day instead of 8 hours once.

 

  • Studies have found that smiling is 69% more attractive than wearing makeup.

  • Onions have been proven to lower cholesterol, reduce chances of a stroke, and reduce chances of various types of cancer.

Happy Friday!
source: @Fact


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Why ‘get A Good Sleep’ Should Be Your Top New Year’s Resolution

If getting a good night’s sleep is not on your list of New Year’s resolutions, you might be setting yourself up for failure with the other goals on your list, including health-related ones, according to a sleep specialist from Ryerson University.

“If you’re having poor quality sleep it can actually interfere with some of your weight loss and weight maintenance goals,” said Colleen Carney, director of the Sleep and Depression Laboratory at Ryerson University. “It actually affects your metabolism, your ability to process insulin, and makes you hungrier and makes you feel less full when you’re eating so you’re prone to overeating.”

Not only does poor sleep affect a person’s physical health, it’s connected with mental health problems as well, said Carney, speaking on CBC Radio’s Ottawa Morning.

“Unfortunately, people suffering from insomnia are susceptible to developing depression, so it’s really important for us to understand those links,” Carney said.

Create a routine for winding down

To get 2018 off on the right foot, Carney recommends implementing a routine for winding down that begins one hour before bed.

“You want to make sure that the phone is put away because that’s the device that keeps you plugged in to problem-solving, sometimes bad news or exciting news,” Carney said. “And you want to really cease any goal-directed problem-solving that we regularly do during the day.”

Suitable replacements for looking at one’s smartphone could be any relaxing, enjoyable activity, such as taking a bath, meditating, yoga or hobbies, Carney said. If you use your phone as a wake-up alarm, turn off the notifications so you’re not tempted to pick it up.

Sleeping well makes it easier to achieve other goals such as those for
exercise and weight loss, according to a Ryerson University sleep expert.

Find your perfect sleep cycle

People vary in terms of the times when they typically get sleepy or wake naturally, Carney said. This often changes over one’s lifetime, for example, teenagers generally prefer to go to sleep later than adults, but adults can figure out their natural cycle and plan to sleep accordingly.

“If you typically get sleepy around 11 and your body would actually wake you up around six or seven, then you know that’s pretty much the sweet spot for you and this is largely genetically determined,” Carney said.

As far as how much sleep you really need, Colleen recommends looking at how much you sleep on average over a two-week period. Sleeping nine hours on a single weekend night may not mean you need nine hours of sleep every night.

“Some people are longer sleepers, but you shouldn’t be sort of picking what your longest sleep is and say ‘that’s what I’m going to go for’ because that will create insomnia over time.”

Adults can take a cue from children

While adults push their children to go to bed early and give them routines for winding down before bed, many don’t apply the same rules to themselves, Carney said.

“We know it’s good for how alert they’re going to feel during the day, their emotion regulation and how well they sleep,” Carney said. “But when we become adults we think we outgrow that and we throw all that out the window, and when we feel crappy and have trouble sleeping, we can’t understand why.

“We have to get back to basics.”

CBC News    Jan 06, 2018
source: www.cbc.ca


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This Food May Help You Sleep Better

Forget warm milk. A new study from the University of Pennsylvania says that fish may be the key to a good night’s sleep.

The paper, published Thursday in Scientific Reports, found an association between regular fish consumption and high sleep quality among Chinese schoolchildren, likely thanks to the omega-3 fatty acids found in fish. Largely as a result of that improved sleep, the researchers found, the children also scored higher on IQ tests.

“There’s a relationship between fish consumption and higher cognitive functioning. What what we document here is that it’s the better sleep that explains the relationship,” says Adrian Raine, one of the paper’s authors and a professor of criminology, psychiatry and psychology at Penn. “From A to B to C: From fish consumption to better sleep to higher cognitive functioning.”

The researchers asked 541 schoolchildren in China between ages 9 and 11 to describe their eating habits, including how often they ate fish. Their parents, meanwhile, were asked to answer questions about the kids’ sleep patterns. Researchers then administered IQ tests when the children turned 12.

They found links between eating fish regularly — the more, the better — and both improved sleep and higher IQ scores. But, Raine explains, it appears that many of the cognitive benefits can be traced back to bedtime. “The brain is so much more plastic early on in child development,” he says. “We might anticipate that fish consumption earlier in life may be particularly beneficial for a child’s sleep and cognitive functioning.”

While the study focused on kids, Raine says “it’s quite reasonable to imagine that these findings can also apply to adults,” citing studies that have shown that omega-3 fatty acids can alter psychological functioning in adults.

Eating fish just a few times a month may improve your brain functioning, Raine says. (Fish and omega-3s have also been shown to be good for your heart.)

“The important thing is really having a balanced diet. It needn’t be a lot,” Raine says. “Even if parents could just get fish on the table once a week, that could be enough to make a bit of a difference over at school and in long-term performance, and especially sleep.”

By JAMIE DUCHARME       December 22, 2017      TIME Health
source: time.com


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Lack Of Sleep May Mess With Your Health On A Molecular Level

The impact goes far beyond grogginess and irritability. In many cases, sleep loss can give certain diseases the upper hand.

You no doubt have heard about the need to get a proper amount of sleep. Public health authorities continually declare we all need on average seven hours of slumber every night to be at our best. Yet while these recommendations come with a warning about the troubles stemming from a lack of sleep, when it comes to what happens inside our bodies, the details are usually few and far between.

Now, thanks to a team of Australian researchers, we have a clearer understanding of what happens at the molecular level when we disrupt these needed times of rest. The work reveals the impact goes far beyond grogginess and irritability. In many cases, sleep loss can give certain diseases the upper hand.

The team focused on the effects of what is known as the circadian rhythm. This biological phenomenon exists in all living organisms — even bacteria — and dictates when bodies should be active or at rest. The discovery was considered of such great importance the original researchers were awarded this year’s Nobel Prize in Medicine.

When the circadian rhythm was discovered, it was a mystery and any connection to health was speculative at best. But by 2007, researchers began to understand how disruptions in this rhythm can lead to health problems. A new branch of sleep medicine was developed in which disorders such as jet lag and altered timing of sleep became conditions worth documenting and treating based on our wake-sleep schedules.

Yet the studies did not stop there. Secondary consequences — known as sequelae — also were investigated and showed symptoms such as weight gain and poor decision making were directly linked to a lack of proper rest. As for the Australian researchers, they focused on a different problem with a much wider scope for health. Their interest lied in inflammation, one of the most troublesome issues in health today.

Body temperature, blood pressure, feeding times 

… are all affected.

The author’s investigations stems from a relatively recent finding from 2015. Researchers learned of a connection between our immunity and a small section of the brain known as the suprachiasmatic nucleus, more commonly known as the SCN. At just under two millimetres in length, you might think this region would have little effect on us. Yet close to 20 years of research has revealed this tiny region seated deep in the brain is the primary regulator of the circadian rhythm. As studies have shown, the area also impacts almost all of our bodily processes.

The extent of influence on our bodily functions by the SCN is fascinating. Body temperature, blood pressure, feeding times and (not surprisingly) the feelings of wakefulness and tiredness are all affected by this little region. The 2015 study shows the immune system also responds to the calls from this region, altering how it functions during the course of a day. During the day and into the early evening, our immunity is active. Late at night and into the early morning hours, it is at rest. The balance ensures the forces maintain a proper balance and do not end up hyperactive or fatigued.

With this in mind, the Australian researchers explored the consequences to immune balance as a result of sleep deprivation. They found studies both in animals and humans revealing even a slight change in our regular circadian rhythm can lead to the development of low-level inflammation. For the authors, the rise of inflammation could worsen chronic diseases such as allergies, asthma and chronic obstructive pulmonary disease. No to mention the inflammation also leads to a poorer response to infection.

Thanks to this overview, the Australian researchers have shown at the microscopic and molecular levels why getting those seven hours of sleep is so important. They underscore the necessity of making sure people take better care of their health when faced with disruptions to the sleep cycle as a result of shift work, time zone travel and other disturbances. Perhaps most importantly, for those who cannot change their sleep schedules, the inner struggles may require us to be more observant of our behaviours.

As to how to accomplish this balance, the authors suggested treatment options focusing on inflammation as a target. While this direction will no doubt take years to achieve, there may be more natural options to improve the outlook. Proper diet and exercise can help to minimize the extent of inflammation. In addition, the use of melatonin also can provide some assistance. Then there is the potential for probiotics. While still in the early stages, we may be able to one day find a mixture designed to help us stay balanced when the world around us is being disrupted.

11/06/2017    Jason Tetro Microbiology, Health & Hygiene Expert