Teens under age 17 who use marijuana every day are 60 percent less likely to graduate from high school, compared with their peers who have never used the drug, a new study finds.
Teen marijuana users are 18 times more likely to become dependent on the drug, seven times more likely to attempt suicide, and eight times more likely to use other illicit drugs later in life, the researchers report in The Lancet Psychiatry.
The researchers analyzed date from three previous studies that included almost 4,000 participants, according to CNN. The teens in the study were followed until they were 30. The more frequently teens used marijuana, the greater the risks of the drug, the study found.