Shai Efrati, MD, is a renowned physician specializing in internal medicine, nephrology, and hyperbaric medicine. As the director of the Sagol Center for Hyperbaric Medicine & Research and the head of the nephrology unit at Shamir Medical Center, he leads the world's largest hyperbaric medicine center, which treats more than 350 patients each day.

Globally recognized for his expertise, he is also the author or co-author of more than 170 scientific publications and a sought-after speaker at international medical conferences. His pioneering research in neuroplasticity harnesses novel hyperbaric oxygen therapy (HBOT) protocols to promote brain and tissue repair, enhance cognitive function, and improve physical performance across all age groups.

Dr. Efrati earned his medical degree from Ben Gurion University in 2000, completed his residency at the Shamir Center, serves as a professor at Tel-Aviv University's medical school, and actively trains physicians and medical professionals from several countries in hyperbaric and enhanced medicine. He is also the co-founder and chairman of the medical advisory board of Aviv Scientific. He lives in Israel.