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Cannabis health effects. There are health risks associated with using cannabis regardless of how it is used. These include: Cannabis Use Disorder. People who use cannabis can struggle with physical dependency and controlling their use.
A variety of information sources are available to monitor the prevalence and trends of cannabis use in the United States. The resources below cover cannabis-related issues, including data around use, emergency department visits, substance use and misuse, policy measures, and other related tools.
Key points. Cannabis can make the heart beat faster and can raise blood pressure immediately after use. More research is needed to understand the full impact of cannabis use on the cardiovascular system to determine if cannabis use leads to higher risk of death.
The latest information from the CDC on the health effects of cannabis on mental health.
The health effects of cannabis and cannabinoids: Current state of evidence and recommendations for research. Washington, DC: The National Academies Press; 2017. https://nap.nationalacademies.org/catalog/24625/the-health-effects-of-cannabis-and-cannabinoids-the-current-state.
Key points. In 2022, 30.7% of 12 th graders reported using cannabis in the past year, and 6.3% reported using cannabis daily in the past 30 days. Cannabis use can have permanent effects on the developing brain when use begins in adolescence, especially with regular or heavy use.
Key points. Cannabis affects brain development. Cannabis use directly affects brain function — specifically the parts of the brain responsible for memory, learning, attention, decision-making, coordination, emotions, and reaction time. Short and long-term effects of cannabis use on the brain.
More research is needed to understand the specific effects cannabis smoking may have on lung cancer and other respiratory diseases like emphysema (lung condition that causes shortness of breath) and chronic obstructive pulmonary disease .
Synthetic cannabinoids can affect the brain much more powerfully than marijuana, creating unpredictable and, in some cases, life-threatening effects, including: nausea anxiety
Exposure to cannabis smoke. The known risks of secondhand exposure to tobacco smoke—including risks to the heart and lungs 1 —raise questions about whether secondhand exposure to cannabis smoke causes similar health risks.