I * Introduction.- 1 The Ponce de Leon Trail Today.- II * Aging in Cells and their Molecules.- 2 Cell Aging: A Model System Approach.- 3 Is Limited Cell Proliferation the Clock That Times Aging?.- 4 Molecular Biology of Aging.- III * Aging in Plants and Lower Animals.- 5 Cellular and Metabolic Aspects of Senescence in Higher Plants.- 6 The Biological Significance of Death in Plants.- 7 Aging in Lower Animals.- IV * Aging in Humans and Other Mammals.- 8 Exercise and Aging.- 9 Diet and Nutrient Needs in Old Age.- 10 Nutritional Regulation of Longevity.- 11 Consequences of Alcohol and Other Drug Use in the Aged.- 12 Physical Changes of the Aging Brain.- 13 Aging and Immune function.- 14 Genes and Aging.- 15 The Dilemma of Aging Parents: Increased Risk of Genetically Abnormal Offspring.- V * Hormones and Aging.- 16 Endocrinology and Aging.- 17 Hormone Replacement in the Aged: Proceed with Care.- 18 Altered Biochemical Responsiveness and Hormone Receptor Changes during Aging.- 19 The Brain and Aging.- VI * Aging in Perspective.- 20 Evolutionary Biology of Senescence.- 21 The Origin, Evolution, Nature, and Causes of Aging.
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Behnke et al. (1978) studied this question.