The prevalence of marijuana use among US adults more than doubled over a 12-year period, from 2001 to 2013, new research suggests. Prevalence rates rose from 4.1% in 2001 to 9.5% in 2013, according to ...

Dr. Smita Das often hears the same myth: You can’t get hooked on pot. And the misconception has become more widespread as a growing number of states legalize marijuana. Around half now allow ...

Anxiety-related disorders are the most common mental illnesses in the U.S., but less than half of people suffering from them are receiving treatment, according to the Anxiety and Depression ...

New research reveals marijuana users face 29% higher heart attack risk and doubled cardiovascular death chances, plus brain ...

Marijuana use in the United States more than doubled over the period from 2001-2002 to 2012-2013, while the increase in disorders associated with marijuana use was almost as large for that period.