Dr. Christopher Hobbs is a world-renowned author, clinician, botanist, mycologist, and research scientist, with over 35 years of experience with herbal medicine. He is the author of the classic, "Medicinal Mushrooms: The Essential Guide." In this first half of a two-part episode, Dr. Hobbs and Dr. Plotkin look at the history of medicinal herbs and fungi, discuss how to find the best products, and  discuss their healing potential in the context of modern times.