Brain differences in children and teens who experiment with drugs early show up before they take their first puff or sip ...

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

Brain atrophy (cerebral atrophy) is the loss of brain cells called neurons, as well as the connections that help cells communicate. It can result from different diseases that damage the brain.

Study suggests that brain changes related to heavy marijuana use could be a precursor to addiction ...

Using marijuana a few times a week is enough to physically alter critical brain structures, according to a new study published Tuesday in The Journal of Neuroscience. "Just casual use appears to ...

The effects of chronic marijuana use on the brain may depend on age of first use and duration of use, according to new research. Researchers for the first time comprehensively describe existing ...

Using marijuana does not cause changes in brain volume, a new study suggests. Public health experts have cited concerns that using marijuana could be associated with structural changes in the ...

LOUISVILLE, Ky. — Though marijuana is the most commonly used illegal drug in the country, little is definitively known about its impact on the brain. A study taking place at Indiana University ...

A collaborative study sheds light on how cannabis use affects brain development in young people, the main one being atrophy of certain regions of the cerebral cortex.

Marijuana linked to brain-related memory woes, schizophrenia risk in teens By Ryan Jaslow December 16, 2013 / 12:14 PM EST / CBS News Marijuana use may harm teens' brains, new research suggests.

This article was originally published in March 2023. What happens to our brain when we smoke marijuana for years?