Karta Purkh Singh Khalsa, DN-C, RH, has more than 40 years of experience in Ayurvedic medicine, yoga, and meditation. The herbal apprentice of Yogi Bhajan for 32 years, K.P. is a professional member of the National Ayurvedic Medicine Association and a founding faculty in the Ayurvedic Sciences program at Bastyr University. He is president of the American Herbalist Guild and author of several books, including The Way of Ayurvedic Herbs. K.P. has presented at hundreds of conferences, authored thousands of articles, and for 30 years, he has served as Senior Research Scientist and Chief Medical Formulator for Yogi Tea, an Ayurvedic medicinal tea company.