Daily Cannabis Use Raises Heart and Psychosis Risks as 8% to 11% Use It Every Day
Updated
Updated · The Washington Post · May 27
Daily Cannabis Use Raises Heart and Psychosis Risks as 8% to 11% Use It Every Day
4 articles · Updated · The Washington Post · May 27
8% to 11% of young and middle-aged adults now use cannabis daily, and the latest evidence ties frequent use to risks including cyclic vomiting, cardiovascular problems, withdrawal and possible psychosis.
Research remains thin because cannabis was illegal and stigmatized for decades, making long-term studies hard and leaving major gaps on safe daily doses, product types and methods of use.
2024 and 2023 studies linked daily use to higher heart disease and stroke risk, mixed effects on anxiety and sleep, and pain relief that may fade or reverse over time.
Teen onset appears especially concerning for brain development, while heavy users can face practical medical issues such as needing up to 30% more anesthesia during surgery.
A recent U.S. shift of medical cannabis from Schedule I to Schedule III could ease research barriers, but clinicians still advise using the lowest dose that achieves the desired effect.
Is today's high-potency cannabis a ticking time bomb for the cognitive health of its daily users?
As millions use cannabis for wellness, is a lack of research masking a future public health crisis?