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  • Sleeping 5 hours or less increases weight in older men by 17 lbs, in women by 11 lbs

    Posted by .(JavaScript must be enabled to view this email address)
    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.


    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
    .(JavaScript must be enabled to view this email address)

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