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Slower aging in women: a proposed evolutionary explanation
R Rossler1, P E Kloeden, O E Rossler
1Division of Theoretical Chemistry, University of Tübingen, FRG.
Bio Systems
|January 1, 1995
Summary
Evolutionarily necessary aging explains why females live longer than males. This theory predicts sex-specific aging rates and mating behaviors in humans and sperm whales.
Area of Science:
- Evolutionary biology
- Gerontology
- Behavioral ecology
Background:
- Differential female longevity remains an evolutionary puzzle.
- Existing theories do not fully explain sex-specific lifespan differences.
- The concept of aging as a mechanism to reduce intergenerational competition is explored.
Purpose of the Study:
- To investigate the theory of evolutionarily necessary aging.
- To explain differential female longevity using a novel aging equation.
- To predict sex-specific aging patterns and associated mating systems.
Main Methods:
- Developing an aging equation derived from evolutionary principles.
- Analyzing the Gompertz law as a special case within the new framework.
- Applying the equation to predict aging rates in humans and sperm whales.
Main Results:
- The proposed aging equation inherently incorporates sex-specific parameters.
- Slower female aging in humans and sperm whales is predicted by the model.
- The model predicts effective human monogamy and sperm whale promiscuity.
Conclusions:
- Evolutionarily necessary aging provides a framework for understanding differential longevity.
- The theory successfully predicts sex-specific aging and has implications for mating systems.
- Predictions for sperm whale mating systems offer empirical testability.
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