According to a study of 529 High school students, researchers found that 90% of students reported an average sleep time of less than six hors and out of this category 20 % of the students were overweight, and that overweight status was significantly associated with male gender, increased consumption of caffeine and short sleep. Moreover, the association between short sleep and being overweight was also dose related (i.e.: shorter the sleep the more likely the student was overweight).The results suggest that students who do not get enough sleep are at higher risk of being over weight.

Sleep Breath, 2007 Dec; 11 (4) :285-93

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