A new meta-analysis of 55 studies involving more than 3 million people has found that 31% of individuals with cannabis use ...

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

Dr. Smita Das often hears the same myth: You can’t get hooked on pot. And the misconception has become more widespread as a growing number of states legalize marijuana. Around half now allow ...

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