Bryan Johnson· Author
This marker is often elevated in people with concussion, brain swelling, or blood-brain barrier damage.
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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.
This marker is often elevated in people with concussion, brain swelling, or blood-brain barrier damage.
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This marker is often elevated in people with concussion, swelling, and damage in the blood brain barrier.