So let me be the doctor who says it plainly. This is not the mild plant of the 1970s. Then, cannabis was 1-3% THC. Today’s products run 15-25%, and concentrates — dabs, vapes, wax — hit 70-90%+. When people say “it’s natural, it’s harmless,” they’re defending a product that no longer exists. We didn’t legalize the old plant. We industrialized a far more potent one.

A Danish registry study followed 6,788 people diagnosed with substance-induced psychosis. Overall, 32.2 percent later developed schizophrenia-spectrum or bipolar disorder. Among those with cannabis-induced psychosis, 47.4 percent later received one of those diagnoses.

A large Ontario cohort found that approximately 26 percent of people who presented to an emergency department with cannabis-induced psychosis were diagnosed with a schizophrenia-spectrum disorder within three years. The corresponding rate after alcohol-induced psychosis was approximately 8.9 percent. Among the substances studied, cannabis-induced psychosis carried the highest risk of later transition to schizophrenia-spectrum illness. Is it cannabis-induced psychosis or bipolar disorder? https://kevinmd.com/2026/07/is-it-cannabis-induced-psychosis-or-bipolar-disorder.html

YIKES.