This rather complicated study looks at the “gateway theory” through data collected from 510 pairs of twins who participated in a very large, long-term health study — and the gateway theory doesn’t emerge with much backing. The authors write,...
ScienceDaily – Cannabis (marijuana) is the most widely produced plant-based illicit drug worldwide and the illegal drug most frequently used in Europe. Its use increased in almost all EU countries during the 1990s, in particular among young people, including...
