People using weed for medical purposes are as likely -- or more -- to become addicted to cannabis as recreational tokers, a ...

New research from the University of Sheffield reveals how marijuana use affects sperm quality and shape, potentially ...

The rescheduling of marijuana may remove regulatory hurdles and expand the breadth of research beyond pain management.

A new study in JAMA Psychiatry reveals that medical marijuana users are as likely—or more likely—to develop cannabis use ...

An illness linked to chronic marijuana use is sending people to emergency rooms as cannabis legalization continues to spread ...