Marijuana's Popularity Among US Adults Continues to Grow. Here's Why

Marijuana's popularity among American adults is on the rise — and use of the recreational drug is expected to continue to increase, according to several surveys.Forty-five percent of adults in the U.S. have used marijuana at least once in their lives, according to a Gallup poll released in mid-July — the all-time highest percentage in the 48-year history of Gallup asking Americans this question.Meanwhile, data from two large national surveys done by the federal government also finds