Not Enough Sleep = Bigger Appetite
Food is also related to sleep by appetite and metabolism. Research by Dr. Van Cauter shows that people who don’t get enough sleep are more likely to have bigger appetites due to the fact that their leptin levels (leptin is an appetite regulating hormone) fall, promoting appetite increase. This link between appetite and sleep provides further evidence that sleep and obesity are linked. To top it off, the psychological manifestations of fatigue, sleep and hunger are similar. Thus, when you’re feeling sleepy you might feel like you need to head for the fridge instead of bed.