Is there anything to cryotherapy?

On an episode of Anthony Bourdain’s Parts Unknown, he went to a cryotherapy clinic. I’d never heard of this before. Basically, you stand in this big box for 1 to 3 minutes, and they pump in liquid nitrogen which supposedly lowers the temperature in the box to minus 300 degrees Fahrenheit.

They described the process as “tricking” your body into thinking you’re freezing to death, which releases all sorts of beneficial chemicals or something in an effort to not die, which apparently does… something good, I guess.

Not only did this whole thing send my BS meter into the red, it seems to me that it could be extraordinarily dangerous.

Does anybody know about this, or better yet, have you done it? What’s the deal?

Nitrogen is liquid at -320 F and there is no way in hell anyone is getting exposed to something like that intentionally. Even then the liquid would evaporate likely suffocate the “patient”. I suspect the LN2 is used to lower air temperature to something uncomfortable like -20C.

Sounds like a “suffering is good for you” approach to health.

From that “…sit in a cold room (16° C) for two hours.”

LN isn’t needed at all. Just a a chilly room. Even a restaurant fridge is way too cold. Never mind a freezer.

So why the LN? Smoke and mirrors. Who’s going to pay the big bucks without all the cool scientificy mumbo jumbo?

Here is the website of the place. No mention of brown fat; I don’t think that’s what they’re selling.

-284 degrees to - 340 degrees Fahrenheit, which temporarily cools the temperature of the top layer of skin.

If this were true, I’d be more worried about what it was doing to my lungs.

Though I’ve never done it, there is definitely *something *to it, though I have no clue if/how useful that something is for anything long-term. Go take a really cold shower - would you say that your body has a physiological response? Mentally, do you feel more alert and awake?

Bolding mine.

Just about a year ago a salon worker died in a cryotherapy chamber, found the next day frozen solid. Probably a freak accident. But also worth noting that a screw up may cause injury or worse so avoid shady operators.

I think it’s like juicing - probably mostly harmless, although freak accidents and dedicated idiots might run into trouble.

She didn’t freeze to death, although her body was frozen solid when found.

Bolding mine.

http://bigstory.ap.org/article/4b2b9b54c046443694b83bb002e39164/coroner-woman-suffocated-cryotherapy-accident

Yes, cryotherapy is a thing, but it involves normal water ice, not liquid nitrogen.

[/QUOTE]
She may have been suffering in vain …