For twenty-five years, researchers have searched for a marijuana induced anti-motivational syndrome and have failed to find it. People who are intoxicated constantly, regardless of the drug, are unlikely to be productive members of society. There is nothing about marijuana specifically that causes people to lose drive and ambition. In laboratory studies, subjects given high doses of marijuana for several days or several weeks exhibit no decrease in work motivation or productivity. Among working adults, marijuana users tend to earn higher wages than nonusers do. College students who use marijuana have the same grades as nonusers. Among high school students, heavy marijuana use is associated with school failure, but school failure usually comes first.
