Some health experts are raising concerns that marijuana legalization may be producing unintended consequences, including addiction and mental health risks.
An opinion piece cited by The New York Times suggests the country may have “gone too far” with cannabis policies, noting that many people appear worse off after increasing their marijuana use.
Researchers and medical professionals have pointed to a range of potential health dangers. Studies indicate cannabis use is associated with a doubled risk of dying from cardiovascular disease, a 29% higher risk of heart attacks and a 20% higher risk of stroke.
Experts also warn that today’s marijuana is more potent, which may contribute to rising mental health issues. Some research has linked high-potency cannabis — especially among young people — to higher rates of psychotic symptoms and anxiety disorders.
Brain function may also be affected. Regular use has been tied to problems with attention, memory and motivation, while early and frequent consumption is associated with long-term cognitive changes and increased risk of severe substance-use disorders.
Supporters of legalization have argued that criminal penalties caused significant harm and that regulation is preferable to prohibition. However, some policymakers and health leaders say the evidence highlights the need for stronger oversight and a reassessment of how marijuana is marketed and used.