Cannabis and the developing brain challenge risk perception.
Journal of Clinical Investigation June 22, 2020 Y. Hurd
Societal perception of cannabis as low-risk is contradicted by rising THC potency and falling CBD levels, creating what the authors call a "perfect cannabis storm" of unprecedented neurodevelopmental harm, especially for vulnerable populations. Legalization, increased availability, and highly modified strains have produced cannabis today with exponentially higher THC concentrations than a decade ago, while protective cannabinoids like CBD have declined. The authors contend that these interrelated societal, political, and business factors have led to unmatched cannabis exposure in human history, challenging the view of cannabis as harmless.