Jacob Teitelbaum, M.D. — often known simply as “Dr. T” — is a board-certified internist recognized internationally for his pioneering work on chronic fatigue syndrome (CFS), fibromyalgia, sleep disorders, and pain management. He is the author of several best-selling books, including From Fatigued to Fantastic! now in its fourth edition. Having personally overcome CFS and fibromyalgia during medical school, Dr. Teitelbaum developed the S.H.I.N.E.® Protocol, a comprehensive approach that has helped thousands of patients restore their energy and health. His research includes clinical trials on fatigue and fibromyalgia, and he co-created the “Cures A-Z” smartphone app to help users explore natural and medical treatments for common health concerns.