Marijuana products with high levels of THC increase the risk of psychosis and schizophrenia, according to a new evidence review, but their impact on anxiety and depression remains unclear.

A new study finds people with cannabis use disorder are more than three times as likely to develop oral cancer within five years.

In a new study, participants administered low doses of CBD for 28 days experienced liver enzyme elevations greater than 3 times the upper limit of normal.

A major analysis of data from 24 studies involving more than 200 million people finds those who used marijuana had significantly higher odds of acute coronary syndrome, stroke and death from heart disease.

More Americans 65 and older are using marijuana for chronic conditions like heart issues, diabetes, high blood pressure and cancer, according to a new study.

Two new studies find active pot users are significantly more likely to experience a heart attack compared to nonusers, even if they’re young and have healthy blood pressure, cholesterol and blood sugar levels.

A new study finds children exposed to cannabis in the womb have more problems with thinking, paying attention and impulse control.

A large, new study finds pot use during adolescence is associated with worse academic performance.

A new study out of Duke University finds many patients with chronic pain are co-using pot and tobacco, and the combination may actually amplify pain in the long run.