4 health problems that could affect your sleep

One-third of adults in the United States sleep less than they should.

Learn about weight gain, memory issues, and other potential side effects of missing consistent rest.

Learn why shortchanging your sleep could trigger sugar cravings and lead to overeating.

Stress and your diet are two possible causes of sleepless nights.

Too little sleep can make you cranky—and it may raise your risk for heart disease, too.

You probably knew about the effects of having caffeine late in the day. But what about these other causes of sleeplessness?