Human illnesses can be understood as damage to those adaptations that we took on at various stages in our evolution from pre-life molecules to modern Homo sapiens. Preventing these illnesses entails avoiding what causes the damage-- which too frequently are the everyday hazards of twenty-first-century life, as the chart below shows: Level of Evolution Cause of adaptive failure resulting disease or problem Pre-life Environmental poisons Certain birth defects Single cell (bacteria and amoeba-like) Viral infection Colds/flu/HIV Morula (sponge-like) Cellular stress Cancer Chordate Physical stress Back pain Fish Excess dietary salt Hypertension/heart disease Amphibian Tobacco smoke Lung cancer/emphysema Lower primate Excess dietary sugar Diabetes mellitus Higher primate Vitamin C deficiency Scurvy Ape Excess dietary protein Gout Homo sapiens Reduced dietary variety Nutritionaldiseases/food allergies


NOEL BOAZ, Ph.D., Biological Anthropologist, is the founder and Director of the International Institute for Human Evolutionary Research and Professor of Anatomy at Ross University School of Medicine. He is the author of more than fifty scientific papers, the leading textbook in biological anthropology, and two popular science books, Quarry and Eco Homo.