Sleep deprivation can lead to weight gain or limit the beneficial effects of a reduced calorie diet on total body adiposity. Reduced sleep duration has become a common aspect of the westernized lifestyle defined by physical inactivity and overeating.
A few recent studies (see details below) tie reduced sleep to obesity but little is known on the regulations underlying. Longer lasting prospectif and interventional studies are needed to understand the mechanisms responsible. It might be as simple as the fact that you cannot eat while sleeping?
Does sleeping longer makes you thinner?