Andrew Huberman· PhD
Submerging the body in an ice bath, or taking a cold shower, say up to the neck or up to the chest or getting under cold water or jumping in a cold lake or something of that sort, or in the locker room, getting under the cold shower also would be a terrible way to cool off the body quickly compared to the ways that I described through the palms of the hands, the bottoms of the feet or the face for the following reason.