When Some Fine Old Genes Meet a 'New' Environment / J. V. Neel -- Cereal Grains: Humanity's Double-Edged Sword / L. Cordain -- Evolutionary Aspects of Diet and Insulin Resistance / J. C. Brand-Miller and S. Colagiuri -- Evolutionary Aspects of Exercise / J. D. Chen -- Genetic Variation and Nutrition / A. P. Simopoulos