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  "path": "/2026/02/23/very-very-very-worrying-teen-cannabis-use-doubles-psychosis-risk-study-finds.html",
  "publishedAt": "2026-02-23T23:34:47.000Z",
  "site": "https://boingboing.net",
  "tags": [
    "Post",
    "adolescents",
    "cannabis",
    "health",
    "mental health",
    "Science",
    "NPR reported",
    "Read the rest",
    "\"Very, very, very worrying\" — teen cannabis use doubles psychosis risk, study finds",
    "Boing Boing"
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  "textContent": "[](https://boingboing.net/2026/02/23/very-very-very-worrying-teen-cannabis-use-doubles-psychosis-risk-study-finds.html \"\"Very, very, very worrying\" — teen cannabis use doubles psychosis risk, study finds\")\n\nA study tracking 460,000 teenagers in Kaiser Permanente's Northern California system until age 25 found that cannabis users faced double the odds of being diagnosed with bipolar disorder or a psychotic disorder like schizophrenia. The JAMA Health Forum study was designed to address the chicken-and-egg problem that has dogged earlier research: the team excluded any teen who already had mental health symptoms before using cannabis, NPR reported. — Read the rest \n\nThe post \"Very, very, very worrying\" — teen cannabis use doubles psychosis risk, study finds appeared first on Boing Boing.",
  "title": "\"Very, very, very worrying\" — teen cannabis use doubles psychosis risk, study finds"
}