Even Costco got in on the action with a portable $199 cold tub that tempts shoppers to take the plunge. Cold water immersion is more than Instagram chatter. Hippocrates, Thomas Jefferson ...

Are you one of those sauna-goers who dreads the subsequent cold plunge or shower but does it anyway because it is supposed to be good for you? Well, you need not worry if you do not, a medical ...

People might say, 'Oh, we might just do the hot, might not plunge,' but quickly find that after doing it, it's not as scary as they think." The facility maintains its ice baths at a bracing 39 to ...