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Imagine... shedding pounds simply by spending more time in never-neverland. Sounds like something out of a late-night infomercial.
But two new studies show a striking connection between amount of sleep and levels of appetite-regulating hormones in the body.
The findings suggest that chronic sleep deprivation could be making you fat.
American adults have cut their average nightly sleep time by nearly two hours in the last 40 years. And while we've lost sleep, we've gained weight: In 1960, only one out of four adults was overweight, and one out of nine was considered obese. Now, two out of three adults are overweight, and nearly one out of three is obese.
Previous research had shown an association between shorter sleep time and higher body mass index, but no one knew why, says Dr. Shahrad Teheri, an endocrinologist at Bristol University, and lead author of one of the two new studies.
He and his colleagues used data from the Wisconsin Sleep Cohort, which has tracked the sleep habits of over 1,000 volunteers for 17 years. They found that those people who slumbered (on average) five compared to eight hours each night had a higher body mass index.
And when the researchers collected blood samples from the volunteers, they discovered that the sleep-deprived had higher levels of ghrelin in their blood. Ghrelin is a hormone produced in the stomach that sends out hunger signals to the brain, which then commands you to be interested in food.
At the same time the sleep-deprived had high levels of hunger-stimulating ghrelin, they had lower levels of leptin. Leptin is another appetite-regulating hormone; it's produced by fat cells and delivers satiation signals to the brain. The particular hormonal ratio of high ghrelin/low leptin was likely encouraging the group to load up on unnecessary calories.
articles.health.msn.com...
now, when the wife wakes me at noon and says I am a lazy do nothing p.o.s. I can tell her to back off, I'm dieting.
American adults have cut their average nightly sleep time by nearly two hours in the last 40 years. And while we've lost sleep, we've gained weight: In 1960, only one out of four adults was overweight, and one out of nine was considered obese. Now, two out of three adults are overweight, and nearly one out of three is obese.
Originally posted by MaskedAvatar
Hmmm hang on... of course... when you're asleep, you can't eat crap food and keep stuffing your mouth while you live your slow death sedentary lifestyle! I should have known.
The research is bunk (no pun intended either).
Originally posted by MaskedAvatar
I did. At 280 pounds I had love handles. At 230-240 pounds I am lean - muscular - athletic - svelte...
Originally posted by Indellkoffer
Interesting adaptation mechanism. But how in the heck can us poor moms manage 8 hours of sleep???
Originally posted by Crakeur
marg, miracle diet that works - atkins.
The reality behind the diet, well you just have to stay out of the junk food, anybody that stays out of the junk food and sugar will lose weight also.
Originally posted by SportyMB
.....but that sleep research bla bla bla is just another distraction that leads people away from the TRUTH and the only realistic sure way to shed weight.
sporty
[edit on 23/9/2005 by SportyMB]