Andrew Huberman· PhD
Some people, because they dread the cold so much, will actually experience norepinephrine and epinephrine increases even before they get into the cold water or under the cold shower.
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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.
Some people, because they dread the cold so much, will actually experience norepinephrine and epinephrine increases even before they get into the cold water or under the cold shower.
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because blood pressure and heart rate goes up in in those who are new to this kind of activity