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 ...

If you just smoked some weed or eaten an edible, it probably doesn’t take long before you’re scarfing down all the junk food in sight. Well, you’re not alone. One of the most talked about effects of ...

Brain atrophy can be slowed or stopped in some situations. Others — like Alzheimer’s and Huntington’s disease — will get progressively worse in both symptoms and brain atrophy over time.

More information: Study: Yuto Uchida et al, Acceleration of Brain Atrophy and Progression From Normal Cognition to Mild ...

New concerns on marijuana and driving 02:35. In the study, researchers looked at 59 marijuana users who had used marijuana daily for the past 60 days, and had used the drug on at least 5,000 ...

The brain continues to develop well into the 20s, and even into the 30s, said Breiter, who is concerned about the long-term impacts of marijuana use on the developing brain.

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 brain.

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 ...

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 ...

Long-term marijuana use can lead to brain damage, study shows 02:34. Long-term marijuana use appears to alter a person's brain, causing one region associated with addiction to shrink and forcing ...

Long-term marijuana users (usually 1-4 times weekly) at the age of 45 had a mean 5.5 points IQ decline (compared to childhood), and poorer learning and processing abilities.