Adrien Broner's ice bath: endurance or craziness?

WHEN EVERYONE FELT COLD... EXCEPT ADRIEN BRONER. "Some training requires endurance." "But Broner decided to test that in a different way: an ice bath and an absolute chill." "While many people can't handle a few seconds in freezing water, Broner appears calm, as if he were taking a normal bath." "And perhaps it is precisely this mentality that catches attention in boxing: enduring discomfort without letting it control you." "Did the guy not feel cold or is he just crazy?"