Hypothermia After a Cold Plunge? On a recent episode of @thisweekinstartups, #jasoncalacanis thought that we was going into hypothermia, when in fact, he was experiencing a mild panic attack. Here are the neuroscience facts! Jason Calacanis' shaking after a cold plunge was not hypothermia but a mild panic attack, explained by neuroscience facts. The cold plunge activated his sympathetic nervous system, the "fight or flight" response, significantly increasing stress chemicals like adrenaline and norepinephrine. Exiting the cold plunge too quickly without regulating his breathing kept his body in a heightened sympathetic state, leading to the shaking he experienced. This reaction is rooted in neuroscience, as it demonstrates how the body responds to stress and attempts to return to balance. For future cold plunges, neuroscience suggests the importance of gradual adaptation and controlled breathing to allow the nervous system to regulate, recommending slightly warmer water and a longer submersion time to prevent similar stress responses. I doubt you'll ever see this, #jasoncalacanis, but I hope it helps if you do! #hypothermia #panicattack #fightorflight #stress #chemicalreaction #nervoussystem