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flag Billionaire Bryan Johnson self-injects ketamine, observes brain changes, raising health concern debates.

flag Bryan Johnson, a wealthy entrepreneur known for his anti-aging efforts, conducted a self-experiment by injecting himself with ketamine, a horse tranquilizer. flag He tracked his brain activity for 15 days and observed that his brain patterns became highly adaptable and unpredictable after the injection, returning to normal after three days. flag Johnson's experiment sparked mixed reactions and raised concerns about the risks associated with ketamine use, including potential memory issues and organ damage.

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