A breath of pressurized, oxygen-rich air can change the lives of patients with PTSD and many other conditions. When implemented properly and for the correct number of sessions, high-pressure oxygen therapy (HBOT) can indeed work medical 'miracles,' according to Prof. Shai Efrati. Efrati has been the founder and director of the Sagol Center for Hyperbaric Medicine and Research at Shamir Medical Center (formerly Assaf Harofeh Medical Center) in Tzrifin (near Rishon Lezion) since 2008. He has spent decades researching the field and giving treatments, turning his HBOT facilities into the largest and most advanced in the world, and treating in eight different chambers, an average of 400 patients daily from 7 a.m. to 10 p.m.