Marijuana

Access to medical marijuana may have cut patients' need for this other drug.

Health officials in Illinois are warning people that synthetic marijuana can cause bleeding from the ears and eyes, according to news reports.

Coffee acts on the same system in the body as marijuana does.

Medical-marijuana legalization doesn't seem to lead to an increase in pot usage for teenagers.

For both teens and adults, alcohol appears more dangerous for the brain than marijuana is.

Thousands of pot supporters mark the "high" holiday by lighting up at 4:20 p.m. But the celebration may increase the risk of fatal car crashes.

Can marijuana's use for pain relief slow the opioid epidemic?

Can weed improve your memo— wait, what were we talking about?

It's really tricky to measure how much marijuana a person has used on a given day — and how impaired their driving may be as the result of that use — a new review says.