A new study suggests a lack of adequate sleep may increase the risk of drug and alcohol use in male teens. The study of 186 boys found duration and quality of sleep at age 11 were associated with early substance use throughout adolescence.

“If we just look at age 16, the group of kids getting the most sleep… only about half of them had tried alcohol,” lead researcher Brant Hasler told CBS Pittsburgh. “If we look at the group of kids getting the least sleep, nearly three quarters of them had tried.”

Boys who slept the least, compared to those who slept the most, were more likely to report earlier use, intoxication and repeated use of both alcohol and marijuana.