Researchers at the Centers for Disease Control and Prevention found in a recent study that one in six, or 37 million, U.S. adults binge drink about once a week.

The CDC defines "binge" drinking as consuming five or more drinks, in men, or four or more drinks, in women, in the span of about two hours.

More than half of the 17 billion binge drinks in the U.S. annually are consumed by adults over the age of 35. But, binge drinking is more prevalent among adults from 18 to 34. About 4 in 5 binge drinks are consumed by men.

The study says that binge drinkers are greatly increasing their chances of harming themselves and others. Research has shown that binge drinking can result in dangerous driving, risky sexual behavior, and more violent behavior, and it also increases the risk of cancer, heart disease and liver failure.

The U.S. Dietary Guidelines for Americans recommends that if alcohol is consumed, it should be in moderation: up to one drink a day for women, and up to two drinks a day for men.