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Sleeping 5 hours or less increases weight in older men by 17 lbs, in women by 11 lbs
Wednesday, May 20, 2009 2:25 pm Email this article
Older men who get less than 5 hours of sleep per night weigh roughly 17 lbs more than those who get 7-8 hours of sleep per night.
For older women in these two groups, the difference was roughly 11 lbs.
This is according to a recent study from six centers around the U.S..
They notes that the prevalence of adult obesity in the U.S. has doubled from the 1970’s to 2000, increasing from 15% the 1970’s to 31% in 2000.
They also noted that the percentage of adults in the U.S. reporting getting 8 hours of sleep per night was only 35% in 1998, and has decreased further to only 26% in 2005.
The study involved 3055 men and 3052 women over the age of 65.
The rate of obesity was 3.7 times higher in men getting only 5 hours of sleep per night versus those getting 7-8 hours per night, and 2.3 times higher for women in these two groups.
The average BMI of men in these two groups was 29.1 versus 26.6, a difference of 2.5 units of BMI.
For a man of average height, this would be a difference of 17 lbs, or 202 lbs versus 175 lbs.
The average BMI of women in these two groups was 28.5 versus 26.7, a difference of 1.8 units of BMI.
For a woman of average height, this would be a difference of 11 lbs, or 166 lbs versus 155 lbs.
Patel S, Blackwell T, Redline S, Ancoli-Israel S, Cauley J, Hillier T, Lewis C, Orwoll E, Stefanick M, Taylor B, Yaffe K, Stone K. The association between sleep duration and obesity in older adults. Int J Obes (Lond). 2008 Dec, 32(12):1825-34.
AUTHOR’S CONTACT INFORMATION
Dr. S. R. Patel
Division of Pulmonary, Critical Care, and Sleep Medicine
Case Western Reserve University
11400 Euclid Avenue, Room 290-D
Cleveland, OH 44106, USA
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