Over 75% of eighth graders, 83% of tenth graders, and 73% of high school seniors in the U.S. surveyed in 2008 reported that using heroin occasionally without a needle was a great risk.
Studies with lab animals have proven that animals will work more persistently at pressing a bar for cocaine than for any drug, including opiates.
Studies show that an estimated 92% of individuals who use Ecstasy will eventually move on to use other illicit drugs.
Medication is less effective when hashish is used.