The Business of Cannabis

The Surprising Ways Cannabis May Affect The Aging Brain

Apr 15, 2026 | National

Marijuana use seems to be more popular (or at least more openly talked about) than ever. Regardless of whether you’re on the gummy bandwagon, you might wonder how it really affects your brain after the buzz wears off.

About 15.4 percent of Americans older than 12 have used cannabis in the past month, according to 2024 data from the Substance Abuse and Mental Health Services Administration. That number has been increasing as new marijuana products hit the market and more states legalize its use, according to the Centers for Disease Control and Prevention.

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