Exposure to marijuana in the womb may increase risk of addiction to opioids later in life, study finds

With the increased legalization of recreational cannabis, as many as 1 in 5 pregnant women in the U.S. are now using the drug to help with morning sickness, lower back pain or anxiety. Evidence has been growing, however, to suggest that tetrahydrocannabinol (THC), the main psychoactive ingredient in cannabis, poses risks to the developing fetus by impacting brain development. Now a new study finds that this could increase the risk of addiction to opioids later in life.