Heavy Teen Marijuana Use May Cut Life Short by 60

(WSAW, April 24) A new study shows that teens who used marijuana heavily were more likely to die by age 60 compared to those who didn't. The study, conducted by the Karolinska Institutet in Stockholm, analyzed records of more than 45,000 men in 1969 and 1970 and found that 42 years later, 4,000 had died. Other scientists say that the study confirms other research that links heavy marijuana use at an earlier age to lung cancer, and another to increased heart problems, both which could cause earlier mortality. READ MORE.