The study, “Intergenerational Continuity of Substance Use,” found that when compared to parents who did not use substances, parents who used alcohol, marijuana, and other illicit drugs, were significantly more likely to have children who used those same drugs. Specifically, the odds of children’s alcohol use were five times higher if their parents used alcohol, the odds of children’s marijuana use were two times higher if their parents used marijuana, and the odds of children’s other drug use were two times higher if their parent used other drugs. Age and other demographic factors were also important predictors of substance use. . . . Read more . . .