Andrew Huberman· PhD
cortisol as I mentioned is released from the adrenals it can have action both in the body and in the brain cortisol can cross the blood brain barrier epinephrine cannot that's one of the reasons why it's released both from the adrenals in your body and released from this brain stem area the locus culus in your brain that's a powerful thing because what it means is that the body can enter states of Readiness and alertness while the Mind remains calm