Marijuana, commonly known as weed, is often used for its psychoactive effects and therapeutic benefits. While moderate use can have positive effects for some, excessive consumption can lead to several ...

WASHINGTON - Smoking marijuana can make teenagers mentally ill, even suicidal - at least that's the message behind a nationwide campaign announced Tuesday by the Bush administration. "Marijuana can be ...

While use of drugs such as cocaine or methamphetamine has declined among U.S. teens, more adolescents are smoking marijuana, according to the results of an annual survey funded by the National ...

Alcohol and marijuana are two drugs commonly used by people at the same time. New information indicates that combining the two may cause individuals to overuse both substances, which in some cases can ...

Newly-released research argues that more Americans use marijuana daily than drink alcohol every day. The study, which was published in the journal Addiction on Wednesday, was authored by Carnegie ...

A nine-year study done at the University College London revealed that smart teenagers are twice as likely to smoke weed, due to their curious minds, than their less academic peers. The landmark study ...

Only days away from 4/20, a day of celebration for marijuana users, new survey results from the AAA Foundation for Traffic Safety found some of those who partake make the risky decision to get behind ...