Even using marijuana once or twice a month is linked with worse school performance and more emotional turmoil among teenagers ...

About one in three Americans say their holiday “pregame” routine involves using marijuana, according to a new survey. The ...

Using marijuana just once or twice a month was associated with worse school performance and emotional distress for teens, ...

High schoolers who used weed once or twice a month had double the risk of poor grades and had higher rates of depression.

More American teenagers are staying away from alcohol, marijuana and nicotine — but two other vices are growing in use, according to a national survey released Wednesday.

Remember those classic stoner dudes — Cheech and Chong, anyone? — spending their days in a weed-drenched room (or car), capable of little besides finding that next great high? If you don’t, that’s not ...

Using marijuana as little as once per month is associated with a higher risk of both heart attack and stroke, according to a large study published Wednesday by researchers from Massachusetts General ...

Another holiday season has arrived—and, with it, another round of public service announcements from regulators in states that have legalized marijuana that are aimed at advising people about how to ...

Young adults in America are using marijuana and hallucinogenic drugs at higher rates than ever before, but are taking fewer opioids, according to a National Institutes for Health study published this ...

Some people with pain, anxiety or depression who obtain medical marijuana cards may overuse marijuana within a short time frame, leading to cannabis use disorder while failing to improve their ...

Republican Rep. Mike Lawler (N.Y.) said Monday that President Trump changing marijuana’s classification would be ill-advised.

OKLAHOMA CITY (KFOR) – A recent investigation by The Frontier found that Oklahoma is prosecuting pregnant women for using marijuana during pregnancy-even if they have medical marijuana cards. The ...