I tried cryotherapy, the crazy treatment that plunges you to -90C and makes your body think it's dying

LONDON - One of the hottest trends in therapy right now is tricking your body into thinking it's dying.

I'm talking about cryotherapy - a procedure that involves standing in a chamber of up to -90 degrees Celsius for a couple of minutes (because any longer would literally kill you).

It produces a fight-or flight response in the body, and a huge rush of endorphins. The unconventional treatment is beloved by athletes and celebrities alike.

I wanted to see what the fuss is about, so I paid a visit to a London clinic to try it for myself.

(Read on to see how I found it - but if you want a condensed version, you can also watch a video about my experience of cryotherapy here.)