https://www.siliconvalley.com/2022/07/03/california-may-require-labels-on-pot-products-to-warn-of-mental-health-risks/

Liz Kirkaldie’s grandson was near the top of his class in high school and a talented jazz bassist when he started smoking pot. The more serious he got about music, the more serious he got about pot.

And the more serious he got about pot, the more paranoid, even psychotic, he became. He started hearing voices.