Marijuana Usage

This study is for people scheduled to have their wisdom teeth (third molars) removed and are going to receive drug through an IV to put them to sleep. The researchers are studying two groups: one group of people who report using recreational marijuana/THC/cannabis and another group who report not using it. They want to look at how both users and non-users do during the tooth removal.

This is a longitudinal study of the long-term health impact of cannabis smoking on the lungs. Participants will be followed over a period of 3 years, and impacts of cannabis smoking on the lungs will be measured with magnetic resonance imaging (MRI) using hyperpolarized xenon-129 gas, pulmonary function tests, exercise capacity, computed tomography images and questionnaires.