McMaster University

Demystifying Medicine
Seminar Series

Marijuana | Cannabis | THC

There are both potential therapeutic uses for and potential health risks of using cannabis (marijuana). A chemical called delta-9-tetrahydrocannabinol (THC) is responsible for the way your brain and body respond to cannabis. While it is used by some for therapeutic purposes, there are short- and long-term physical and mental health effects that can be harmful.

Health Canada