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Poor Sleep Linked to Weight Gain and Obesity
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March 1, 2008
By Susan M. Callahan, Health Editor and Featured Columnist
Want to lose weight? You may be surprised to learn that dieting is
not the single best thing you can do to jump start your weight loss.
What is? Sleep.
That's right--sleep. According to a new study published in the
journal Sleep, poor sleep is directly linked to the development of
obesity from childhood and throughout adult life.
There have been 696 studies which have established some
connection between poor sleep and weight gain. What distinguishes
the new study is that it is a meta-study--a sort of poll of polls-- that
aggregated the results of all other previous relevant studies to
reach its conclusions.
Of 696 studies identified, 45 met the criteria to be included in the
meta-study (19 in children and 26 in adults). Thirty additional
studies were considered in the analysis in some respect for a total
of 36 population samples.
Over 634,500 participants (30,002 children and 604,509 adults)
from around the world were analyzed in the aggregate, ranging in
age from 2 to 102 years. Boys, girls, men and women were all
included.
What the study did not establish was the causal connection
between poor sleep and obesity. Is poor sleep causing obesity or is
obesity causing poor sleep?
Probably both statements are true. The road between poor sleep
and obesity probably goes through inflammation.
You should get enough sleep to avoid setting yourself up for
internal inflammation, which in turn contributes to insulin
resistance, which in turn contributes to obesity. It may take many
more years of research to nail down this connection with
inflammation definitively but there is enough evidence to make
eating a low-inflammatory diet and leading an anti-inflammatory
lifestyle a smart choice.
Sleep is essential to controlling internal inflammation. So is
exercise and eating green vegetables and fiber.
The bottom line: all people need between 7 and 8 hours of sleep a
night. Think of your sleep as important as eating or breathing. It is.
Do everything you can to avoid interrupting your sleep, whether it
be snoring yourself, snoring mates, obesity or noises.
Related Links
Snoring Linked to Stroke
How to Remove Dark Circles Under Your Eyes
"My Husband Snored to Death"-- a personal story
Stroke Signs --How to Know When You Are Having a Stroke
Can't Sleep-Here's Help
Americans Are Chronically Sleep Deprived-2008 Study Released
Owning a Cat Cuts Stroke Risk by 40%
My Heart Attack-A Personal Story