New research on marijuana's impact on personal health shows that it's not just bank accounts that can shrink due to long-term recreational use. The drug may also decrease brain volume. “Long-term ...

In part one of what marijuana really does to your brain, we traced the discovery of the cannabinoid receptor. Finding the receptor is the first step in determining how smoking causes a high. The next ...

Marijuana is made from the shredded and dried parts of the cannabis plant, including the flowers, seeds, leaves, and stems. It’s also known as pot, weed, hash, and dozens of other names. While many ...

The myth that cannabis is harmless because it’s natural has been further debunked—by scientists in a pot-friendly state. New research from the University of Colorado Anschutz Medical Campus shows that ...

Frequent marijuana use can negatively affect brain activity, resulting in reduced memory capabilities, according to information published Tuesday in the medical journal JAMA Network Open. In the study ...

Now that marijuana is legal in Maryland, some lesser-known effects of its use are coming to light. Since 2022, the Maryland Cannabis Administration has conducted an annual survey, the Maryland Medical ...

Scientists want to create breathalyzers that show how recently a driver used marijuana. Researchers also are studying how cannabis impairs motor skills and reflexes for habitual and occasional users.

I want to emphasize that the order I am about to sign is not the legalization [of] marijuana in any way, shape, or form,’ ...