WHAT IS IT
Cryotherapy, sometimes known as cold therapy, is the local or general use of low temperatures in medical therapy. 

WHY DO IT
Cold therapy is linked to a number of health benefits.

For example, scientists have found evidence that exposure to cold boosts mitochondrial health through a process called "mitochondrial biogenesis", which is another way of saying producing more of them. 

Another benefit of utilizing cold therapy is that it reduces inflammation.

Furthermore, cold therapy is also linked to improved sleep quality, increased focus, and even an optimized immune response.

HOW TO DO IT
There are 3 main ways you can do this:

1) COLD SHOWER
Boost your mitochondria by ending your hot showers with 30 seconds of water as cold as you can stand it. Even 30-90 seconds of cold water can have profound health effects. For the cold shower and ice bath, work yourself down to 50F / 10C temperature. 

2) ICE BATH
Ice baths are another variation of cold therapy. But what if you don't live near a facility that features ice baths or have a high-end system at home? An inexpensive alternative is an ice bath at home. Throw a ten-pound bag of ice in the bathtub with cold water and get in.

3) CRYOTHERAPY
Cryotherapy is great for its ease of use, but it's the most expensive option mostly used by busy professionals and executives since you can be in and out of a cryotherapy chamber within 10 minutes and back to work.