Andrew Huberman· PhD
And what they found was that concentration performance improved manyfold, I should say, from, there was a greater than doubling of concentration and performance in the stress group.
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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.
And what they found was that concentration performance improved manyfold, I should say, from, there was a greater than doubling of concentration and performance in the stress group.
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When we are stressed, it involves the deployment, the release of adrenaline, epinephrine, and that that adrenaline both changes our visual field, in other words, it narrows our vision to a more tunnel-like focus, that is it makes the arrow in our metaphor of the arrow more sharp, and it improves our concentration.
there does appear to be a quite long lasting, really up to an hour or more effect of increasing epinephrine.