Uncovering genetic roots of marijuana use disorder

A large study exploring possible genetic influences on cannabis use disorder has identified two regions in our DNA — one newly identified and a second that replicates a past finding — that appear to contribute to one’s risk of becoming dependent on marijuana. The findings — published Oct. 20 in Lancet Psychiatry — stem from […]

Prenatal cannabis exposure associated with adverse outcomes during middle childhood

While cannabis use during pregnancy is on the rise, researchers at Washington University in St. Louis have found evidence that the resulting children are more likely to have psychopathology in middle childhood. The team’s analysis are the first steps in studying the effects of cannabis on children as attitudes surrounding its use change rapidly — […]

Cannabis during pregnancy bumps psychosis risk in offspring

Pregnant women who use cannabis may slightly increase the risk their unborn child will develop psychosis later in life, suggests new research from Washington University in St. Louis. Fine “Our research shows that prenatal marijuana exposure after maternal knowledge of pregnancy is associated with a small increase in psychosis proneness during middle childhood or about […]

More pregnant women in U.S. smoking pot

From Reuters… Even as alcohol and tobacco use continue to decline among pregnant women in the U.S., a new study offers fresh evidence that more American mothers are using cannabis during pregnancy. Other recent studies have also documented a rise in cannabis use among pregnant women of all ages, with some evidence of particularly sharp […]