Binge drinking
The population of people who binge drink mainly comprises young adults aged 18–29, although it is by no means rare among older adults. For example, in 2007 (using a 5-drinks definition per occasion for both genders), 42% of 18- to 25-year-olds "binged" at least once a month, while 20% of 16–17-year-olds and 19% of those over age 35 did so. The peak age is 21. Prevalence varies widely by region, with the highest rates being in the North Central states. Binge drinking is more common in men than it is in women.