FRIDAY, March 3, 2017 (HealthDay News) — There’s no evidence that a growing trend called whole body cryotherapy is effective, but it does pose a number of risks, the U.S. Food and Drug Administration warns.
In whole body cryotherapy, people are placed in an enclosed space and exposed to vapors that reach ultra-low temperatures ranging from minus 200 to minus 300 degrees Fahrenheit, typically for two to four minutes.