Dharma Singh Khalsa, M.D., is President and Medical Director of the Alzheimer's Prevention Foundation International. Dr Dharma, as he is often called, is a graduate of Creighton University School of Medicine and is board-certified in anaesthesiology and pain management. In 1981, after meeting his spiritual teacher, Yogi Bhajan, he cast aside his hospital gown and sterile gloves to don the distinguished full beard and white turban of an American Sikh. At that time, he realized that he no longer had to use powerful drugs to put people to sleep, but rather, could help them wake up and heal in their body, mind and spirit. A medical pioneer, Dr Dharma's work on longevity, meditation and spiritual transformation is now considered state-of-the-art.