It's hyperbaric oxygen chambers.......like what's used for divers...
.......you breath pure oxygen for n hour at a time while you listen to music or watch a movie.......the oxygen releases over 6 times the amount of stem cells into your blood which are the bodies repair cells ...immediately after each section you do PT n work the affected areas n the cells find their way to repair...
It's also bein used to treat PTSD.....once I am aloud to post links, it'll provide better info for all to read....