Provides information on the ways marijuana can negatively impact the human body. Topics include the differences between recreational marijuana and medical marijuana; how marijuana products (marijuana flower, oils, tinctures, edibles, etc.) affect each person differently; marijuana dependence and addiction; and much more.

The effects of marijuana on the mental health of teens -- The effects of marijuana on the physical health of teens -- Marijuana use, dependence, and quitting -- Choosing to use -or not use- marijuana -- The limits and future of marijuana science.