Dr. Parker’s lecture will address “Biome Depletion Theory” and the potential medical implications of this theory. The dramatic reduction of complex eukaryotic symbionts, primarily helminths and protists, from the ecosystem of the human body in Western society has contributed to a wide range of chronic inflammatory-related diseases. Such diseases include allergic conditions, many digestive disorders, and autoimmune conditions. Emerging evidence is pointing toward a variety of neuropsychiatric conditions, including migraine headaches, chronic fatigue, and anxiety disorders as being associated with biome depletion. Work toward restoring the biome for health will be discussed.