Study: Marijuana Smoking Does Not Promote Head and Neck Cancer

Marijuana smoke exposure is not positively associated with the development of cancers of the head or neck, according to the results of a systematic literature review published online ahead of print in the journal Archives of Oral Biology.

Investigators from the Federal University of Minas Gerais in Brazil reviewed nine case-control studies to assess whether marijuana smoking favored the development of head and neck cancer.

Authors reported that subjects who used cannabis were no more likely to develop the disease than were subjects with no…