>Even the ancient Greeks described melancholia, so it's not strictly a >feature of modern life. However, it may be a feature of a structured >society, where everyone _must_ find a place within the structure. I >suspect that modern life is so structured that many more people break >under the strain. Perhaps in an HG society, just about everyone can >fit in one way or another. It might simply be due to the adverse affect of carbohydrates on long-term serotonin balance... Also I am thinking about the relationship between schizophrenia, etc. and gluten/casein. My MIL is "clinically depressed" with CFS and is addicted to oatmeal and yogurt. I truly believe that she may have mild schizophrenia. One of her children attempted suicide in his teens.