Marijuana Blog Posts

Find out the health effects that come from breathing secondhand marijuana smoke.

Of the more than 500 chemicals in marijuana, THC is the main one that causes a person to feel high...

Marijuana withdrawal can lead to symptoms like depression, anxiety, irritability, trouble sleeping, and more.

Teens who use nicotine, alcohol, and marijuana have two brain areas that are smaller than average when they become adults.

Check out all of the addiction science updates that we shared on the blog in 2019.

CBD is typically found in very small amounts in the marijuana plant. It’s one of over 100 chemicals called cannabinoids.

In 2018, past-year marijuana use reached an all-time high among young adults. Past-month nicotine vaping more than doubled from 2017...

Teens who vape are a lot more likely to use marijuana than teens who don’t vape.

Chemicals in wastewater can reveal a lot about drug use among large populations.