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Harvard Meta-Analysis Links Spiritual Practices to Lower Risk of Hazardous Substance Use

A JAMA Psychiatry review of 55 longitudinal studies reports modest protective associations, signaling a potential resource for prevention.

Overview

  • The analysis, published February 18, 2026, synthesizes results from 55 studies following more than half a million people from 2000 to 2022.
  • Broad spiritual practices were associated with a 13% lower risk of hazardous use of alcohol, tobacco, marijuana, and illicit drugs.
  • Weekly attendance at religious services showed a larger association, corresponding to an 18% lower risk of hazardous substance use.
  • Authors propose that clinicians ask patients about spirituality and, when welcome, support practices or community involvement that may address stress, loneliness, or loss of meaning.
  • Coverage underscores that spirituality does not require organized religion and that secular recovery options remain important; the study discloses funding from the Templeton Religion Trust and the Lee Family Fund.