According to a study sponsored by the National Institute on Drug Abuse, 22 percent of all 8th-graders and nearly half of all 12th-graders in the U.S. said they have tried marijuana. [Current stats ...

According to the National Center for Drug Abuse Statistics, 3.8 percent of American adults abuse opioids each year. Heroin is a drug that comes from a flower, the opium poppy, which usually grows ...