Marijuana is the most frequently used illegal drug in the United States.
Nearly 69 million Americans over the age of 12 have tried marijuana at least once.
One survey showed that among teens between the ages of 12 and 17, the average age of first experimenting with marijuana was 14 years old.
About 4% of American adults smoke pot at least once a year.
Roughly 1% of adults abuse pot.
One in 300 adults have a marijuana addiction.
As many as 30% of today’s teenagers smoke marijuana.
According to United Nations statistics, 141 million people around the world take marijuana in some form or another.
Normal coordination reflexes are lessened 41% after having smoked just 1 joint and 63% after having smoked 2 joints.
Marijuana use interferes with brain functions, and it has been linked to other mental health problems in young people, such as depression, anxiety and conduct disorders.
Recent research suggests possible associations between marijuana use and schizophrenia, along with other psychotic disorders.
In 2007, approximately 5 percent of high school seniors used marijuana on a daily basis.
When comparing marijuana and alcohol use, marijuana is more strongly associated with juvenile crime.
From 1992 to 2006, the potency of marijuana increased by 175 percent.