“The population of CD34+ cells in the peripheral circulation of humans doubled in response to a single exposure to 2 atmospheres absolute (ATA) of Hyperbaric Oxygen for 2 hours. Over a course of 20 treatments, circulating CD34+ cells increased eightfold (800%).”
Stephen R. Thom, Veena M. Bhopale, Omaida C. Velazquez, Lee
J. Goldstein, Lynne H. Thom, and Donald Buerk.
Stem Cell Mobilization by Hyperbaric Oxygen; Am J Physiol
Heart Cir Physiol, 290: 1378-1386, 2006