Sean Michael Hall, L.Ac., Dipl.O.M., is a licensed acupuncturist and clinical herbalist. After earning a master's in Chinese medicine, he completed advanced coursework in Hangzhou, China. He also spent years apprenticing with world-renowned herbalists Michael Tierra and Christopher Hobbs, giving him extensive training in the use of Chinese, Western and Ayurvedic herbs. Sean's clinic, On Point Acupuncture, is located in Berkeley: www.onpointacu.com.