Let Dr. Spitz—who served as assistant clinical professor at UC Irvine's Department of Urology for 15 years and who is a regularly featured guest on The Doctors—become a best friend as he fearlessly guides you through the hairiest and the scariest questions in The Penis Book. An unflinching, comprehensive guide to everything from sexually transmitted infections to the science of blood flow, The Penis Book prominently features an easy-to-follow holistic five-step plan for optimum penis health, including plant-based eating recommendations, information on some penis-healthy foods, and suggested exercises for penis wellbeing.