Categorized In: Recreation , Addiction & Drug Abuse
Source: InfoFacts - Marijuana | www.nida.nih.gov
Description: Numerous studies have shown marijuana smoke to contain carcinogens and to be an irritant to the lungs. In fact, marijuana smoke contains 50 to 70 percent more carcinogenic hydrocarbons than tobacco smoke.
4 days ago, 11:01pm
Marijuana is a harmful substance because it has 421 chemicals. Marijuana is far worse for the lungs than tobacco. ChaCha!
