Home Health Parents News Now Parental Exposure to Marijuana May Pose Health Risks to Next Generation Parental Exposure to Marijuana May Pose Health Risks to Next Generation By Holly Lebowitz Rossi January 23, 2014 Advertisement Save Pin FB ellipsis More Tweet Mail Email iphone Send Text Message Print Comment shutterstock_110412152 30744 "Our study emphasizes that cannabis [marijuana] affects not just those exposed, but has adverse affects on future generations," said Yasmin Hurd, PhD, the study's senior author, and professor of psychiatry and neuroscience at the Icahn School of Medicine at Mount Sinai. "Finding increased vulnerability to drug addiction and compulsive behavior in generations not directly exposed is an important consideration for legislators considering legalizing marijuana." In the study, Dr. Hurd and colleagues gave adolescent male rats 1.5 mg/kg of THC, similar to about one joint in human use. None of the rats had been exposed to THC before, but their parents were exposed to THC as teens and then mated later in life. THC-exposed offspring worked harder to self-administer heroin by pressing a lever multiple times to get a heroin infusion. Although marijuana use and safety tends to be discussed in terms of its impact to the individual during the lifetime, few studies have addressed adverse effects in future generations. "What this opens up are many questions regarding the epigenetic mechanisms that mediate cross-generational brain effects," said Dr. Hurd. Image: Marijuana joint, via Shutterstock By Holly Lebowitz Rossi Save Pin FB ellipsis More Tweet Mail Email iphone Send Text Message Print Comment Comments Add a Comment Be the first to comment! Advertisement Close this dialog window Add a comment Parental Exposure to Marijuana May Pose Health Risks to Next Generation Add your comment... Cancel Submit Success! Thanks for adding your feedback.