Marijuana is far from a “silver bullet” for various illnesses, but it has some promising applications, scientists say ...

A federal lawsuit accuses three big cannabis companies of lying about pot’s medical benefits and hiding its serious harms.

The Justice Department reclassified marijuana as a Schedule III drug, a shift that affects research and taxes but not legalization ...

Adolescents in California consistently perceive cannabis as less harmful than other commonly used substances, according to a ...

The government recently loosened medical marijuana rules. Experts separate fact from fiction about the drug’s safety and ...

In this study, researchers sought to determine if heavy cannabis use is associated with an increased risk of cancer of the lung and bronchus.

Benjamin Han, a geriatrician and addiction medicine specialist at the University of California-San Diego, tells his students a cautionary tale about a 76-year-old patient who, like many older people, ...

As cannabis legalization spreads, new research reveals that the mental health risks tied to a cannabis addiction depend ...

A 320-page lawsuit filed Monday takes aim at companies that sell legal marijuana in Illinois and many other states, claiming ...

Adults who have visited the hospital due to cannabis use could be at a higher risk of developing dementia. A new study by the Institute for Clinical Evaluative Sciences (ICES) found that individuals ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study has found a link between cannabis use and heart health. (Getty Images) Smoking weed, according to a small new study ...