Sleep deprivation has been linked to health problems such as obesity and high blood pressure, negative mood and behavior, decreased productivity, and safety issues in the home, on the job, and on the road. Sleep deprivation seems to increase hunger. Studies at Columbia University: people who don’t get enough sleep tend to eat an extra 300 calories a day. And the favorite food was ice cream. Both men and women ate more protein-rich foods on short sleep, but only women ingested more fat. While men ate the same amount of fat no matter how much sleep they got, the women averaged 31 more grams of fat after sleeping for four hours.