Andrew Huberman· PhD
being socially isolated is stressful. And one of the hallmark features of social isolation is chronically elevated stress hormones like adrenaline, also called epinephrine, like cortisol.
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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.
being socially isolated is stressful. And one of the hallmark features of social isolation is chronically elevated stress hormones like adrenaline, also called epinephrine, like cortisol.
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But if cortisol is elevated for too long, which is the consequence of social isolation, the immune system suffers and other chemicals start to be released in the brain and body that are designed to motivate the organism, animal or human, to seek out social bonds.