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Health effects of cannabis use

Now that marijuana is legal for use by adults over age 21 in Colorado, it’s important to know how cannabis may affect you, both now and in the future. The effects may be more pronounced depending on how often you use cannabis.

  • Immediate health effects/impairment.
  • Long-term health effects.
  • Effects while pregnant/breastfeeding.
  • Effects on youth.
  • Addiction.

All information on the health effects of cannabis is from the Retail Marijuana Public Health Advisory Committee's systematic review of available, high-quality research. For more information about its findings, review Monitoring Health Concerns Related to Cannabis in Colorado.

This section of the website doesn't include information on the medical uses of cannabis.