Heavy marijuana use may raise the risk of multiple types of head and neck cancers by as much as 90 percent, a study from researchers in California warned. Laryngeal cancer say the greatest risk. Heavy marijuana use may raise the risk of multiple types of head and neck cancers by as much as 90 percent, a study from researchers in California warned. Laryngeal cancer say the greatest risk.
Smoking cannabis may increase risk of multiple types of deadly cancers, study finds
