Bryan Johnson· Author
When I tried intermittent hypoxic–hyperoxic therapy (IHHT), my biomarkers showed a rise in S100-B, a protein linked to brain stress and oxygen deprivation.
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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.
When I tried intermittent hypoxic–hyperoxic therapy (IHHT), my biomarkers showed a rise in S100-B, a protein linked to brain stress and oxygen deprivation.
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