Dr. Patricia Gerbarg and Dr. Richard P. Brown. Dr. Gerbarg are Integrative Psychiatrists practicing in New York. Dr. Gerbarg graduated from Harvard Medical School and has practiced psychiatry for over 40 years. Her research and publications focus on mind-body practices for stress, anxiety, PTSD, depression, and mass disasters. Dr. Brown, associate professor in clinical psychiatry at Columbia University lectures internationally and has co-authored over 100 scientific articles, chapters, and books. Dr. Brown and Dr. Gerbarg developed a neurophysiological theory exploring the effects of yoga breathing in treating stress, anxiety, depression, PTSD, and stress-related medical conditions, which has been validated in clinical trials and with disaster survivors.