Eric Yarnell, ND, is assistant professor in the department of botanical medicine at Bastyr University and past chair of the department of botanical medicine at the Southwest College of Naturopathic Medicine and Health Sciences. He is chief medical officer at Northwest Naturopathic Urology, Inc. in Seattle, WA, where he has practiced for the past 6 years. He completed a residency with Silena Heron, ND, in Sedona, AZ, and has also practiced in Colorado. He is author or coauthor of many textbooks including Naturopathic Gastroenterology, Naturopathic Urology and Men’s Health, and Clinical Botanical Medicine, 2nd ed. More information is available at urologynd.com.