As more states legalize marijuana, use has become more normalized and products have become more potent. But fewer of those who are addicted seek help for it.

Pot use among young adults reached historic levels in recent years, according to a federally supported survey. Daily use even outpaced daily drinking, with nearly 18 million Americans reporting in 2022 that they use marijuana every day or nearly every day, up from less than 1 million three decades earlier.

Studies show a corresponding increase in cannabis use disorder — when people crave marijuana and spend lots of time using it even though it causes problems at home, school, work or in relationships. It’s a condition that researchers estimate affects about 3 in 10 pot users and can be mild, moderate or severe.

And it’s an addiction — despite the common misconception that that’s not possible with marijuana, said Dr. Smita Das, an addiction psychiatrist at Stanford University.