As Maryland navigates recreational marijuana legalization, health experts are highlighting risks for teenagers and young ...

A growing number of studies link cannabis to heart attacks, strokes, psychosis and addiction as public opinion slowly turns ...

Summary: New research reveals how a tiny chemical mark on RNA helps wire the brain during development. Scientists discovered ...

However, many states allow medical use to treat pain, nausea and other symptoms. The THC in marijuana affects the brain, mood, behavior and thoughts, the reason why it is called psychoactive.

Young people who smoked marijuana in the 1960s were seen as part of the counterculture. Now the cannabis culture is mainstream. A survey last year sponsored by the US National Institutes of Health ...

In a mouse study designed to explore the impact of marijuana's major psychoactive compound, THC, on teenage brains, Johns Hopkins Medicine researchers say they found changes to the structure of ...

Marijuana i s not the harmless drug many of its advocates would have you believe, as we have pointed out. Fortunately, a growing number of lawmakers, including those who supported legalization in ...

Nearly half of all Americans have smoked, vaped or eaten a form of marijuana. Marijuana for recreational use is now legal in 21 states, as well as D.C. and Guam.

Marijuana has several potential physical and psychological effects on the body, such as lung irritation and increased appetite. Learn more about the effects of marijuana on the body here.

The existing literature shows that marijuana use may adversely affect brain health and suggests the need for efforts to educate the public and medical community, a new statement from AHA concludes.

Marijuana — or indeed, any substance you introduce into your body — can have different effects on different parts of your brain, and their corresponding functions. Every component of the human ...