Navigating the Legality and Caution of Celebrating 4/20 with Marijuana Use

As more states legalize marijuana, CNN Medical Analyst Dr. Leana Wen urges caution on recreational cannabis use, especially for young people and pregnant women. Marijuana use can cause impaired thinking, disrupt normal mental and physical functions, and stimulate the neurons involved in the reward system that release dopamine, contributing to its addictive potential. Marijuana use in women during pregnancy has been linked to cognitive and behavioral problems in their children. Marijuana use disorder affects as many as 3 in 10 people who use marijuana, and the risk is greater among those who use it more frequently and started earlier in life.