Early studies have linked lack of sleep to both colorectal and aggressive breast cancers.

Multiple studies have suggested a relationship between chronic sleep deprivation and increased obesity risk.

Research has linked short-term sleep deprivation with a propensity to load upon bigger portions, a preference for high-calorie,high-carb foods and a greater likelihood of choosing unhealthy foods while grocery shopping.

A Sleep study evaluating 1,741 men and women over the course of 10 to 14 years found that men who slept fewer than six hours has a significant increase in mortality risk, even after adjusting for diabetes, hypertension and other factors.

A small, recent study of 15 men, published in the journal Sleep, found that just one night of sleep deprivation was linked with signs of brain tissue loss.

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