In a recent study, researchers randomly assigned 24 women who typically slept 7 to 9 hours a night to one night of sleep for their usual duration or to a night of sleep for a third fewer hours.

The day after sleeping less, the women reported more hunger and stronger food cravings than after a normal night of sleep. They also served themselves 14 percent more calories for lunch and clicked a computer mouse button in exchange for chocolate candy more often.

What to do

Be aware that less sleep may make you hungrier.