Bryan Johnson· Author
The study included 32 healthy young adults (16 women, 16 men, age 20-31) given a single dose of MDMA (125 mg). This was all done with medical supervision.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
The study included 32 healthy young adults (16 women, 16 men, age 20-31) given a single dose of MDMA (125 mg). This was all done with medical supervision.
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