Sleep Deprivation Leads To Increased Hunger
Sleep deprivation may alter the hormones that control hunger. One small study, for example, found that young men who were deprived of sleep had higher levels of the appetite-stimulating hormone ghrelin and lower levels of the satiety-inducing hormone leptin, with a corresponding increase in hunger and appetite-especially for foods rich in fat and carbohydrates.
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Staying Awake Gives People More Time To Eat
People who sleep less each night may eat more than people who get a full night’s sleep simply because they have more waking time available. Recently a small laboratory study found that people who were deprived of sleep and surrounded by tasty snacks, tended to snack more-especially during the extra hours that were awake at night-than when they had adequate sleep.
Sleep Deprivation Prompts People To Choose Less Healthy Diets
Observational studies have not shown a consistent link between sleep and food choices. But one study of Japanese workers did find that workers who slept fewer than six hours a night were more likely to eat out, have irregular meal patterns, and snack than those who slept over six hours.