A recent study suggests that children with mothers who use marijuana are more likely to try it at a younger age. According to the research, when mothers use marijuana during the first 12 years of their child's life, the children are more likely to start using cannabis at an earlier age than those with mothers who don't use it. They evaluated the data for 4,440 children and 2,586 mothers for the effect of maternal marijuana use between a child's birth and age 12 on that child's subsequent marijuana initiation, controlling for potentially important factors related to the child's early life behavior and cognition and the family's socioeconomic position and social environment. Although marijuana is generally thought to be less harmful compared with other drugs of abuse, the likelihood of experiencing health consequences associated with marijuana use is strongly linked to age at initiation, such that those who initiate earlier are at much greater risk. Negative consequences may be particularly marked for children and adolescents during these developmentally critical ages. The findings indicate that children of marijuana-using parents may be an important subgroup for identification and early, evidence-based intervention by pediatricians and adolescent health care providers.