Sleep Disorders

24 March 2011

People who sleep less eat more

Researchers discovered that sleep-deprived adults ate more a day on average than those who got enough sleep. And the extra kJ mostly came from saturated fat.

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People of normal weight eat more when they sleep less, a small new study finds.

Columbia University researchers discovered that sleep-deprived adults ate almost 1,260kj  more a day on average than those who got enough sleep. And the extra kJ mostly came from saturated fat, which can spell trouble for waistlines.

Women's diets seemed to be the most impacted by lack of sleep. They ate an average of 1,382kj more a day if they weren't well-rested, while men ate 1,105kj more on average.

Sleep and obesity

The researchers came to their conclusions after following 13 men and 13 women of normal weight. They monitored the eating habits of the participants as they spent six days sleeping four hours a night and then six days sleeping nine hours a night (or the reverse).

"If sustained, the dietary choices made by people undergoing short sleep could predispose them to obesity and increased risk of cardiovascular disease," the researchers wrote in an American Heart Association news release.

Experts note that research presented at meetings has not been subjected to the same type of rigorous scrutiny given to research published in peer-reviewed medical journals.


(Copyright © 2010 HealthDay. All rights reserved.)

 

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Dr Alison Bentley is a general practitioner who has consulted in sleep medicine and sleep disorders, in both adults and children of all ages, for almost 30 years. She also researches and publishes on a number of sleep-related topics both in formal research journals and lay publications including as editor of Sleep Matters, an educational newsletter on sleep disorders for doctors.

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