Most NBA and NFL teams are using this technology. I wouldn't say its a fad considering these guys dump 10's to 100's of millions of dollars in finding cutting edge ways to rejuvenate players. I doubt these teams would be doing it if it wasn't safe.
![[Image: Cleveland_Cavaliers_offer_cryotherapy_as...20_240.jpg]](http://media2.newsnet5.com/photo/2015/05/04/Cleveland_Cavaliers_offer_cryotherapy_as_2905420000_17851878_ver1.0_320_240.jpg)