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The evolution of the human menopause
1a Department of Reproductive and Maternal Medicine , University of Glasgow , Glasgow , UK.
Climacteric : the Journal of the International Menopause Society
|February 5, 2019
Summary
Human females, like Orca whales, experience menopause and extended post-reproductive lifespans. Older females offer survival advantages, highlighting the importance of women's health and fitness for healthy aging.
Area of Science:
- Evolutionary Biology
- Gerontology
- Women's Health
Background:
- Most species' females die post-reproduction, unlike humans and Orca whales.
- Orca whale studies reveal stable social structures and post-reproductive female roles.
- Human females experience a significant post-reproductive lifespan, a rare trait.
Purpose of the Study:
- To explore the evolutionary significance of the extended post-reproductive lifespan in human females.
- To investigate the potential survival advantages conferred by older females, using Orca whales as a model.
- To emphasize the importance of women's health and lifestyle interventions for healthy aging.
Main Methods:
- Comparative analysis of reproductive strategies in humans and Orca whales.
- Observational data on Orca pod leadership and survival during food scarcity.
- Review of global trends in female lifespan and health challenges.
Main Results:
- Human females share the trait of surviving long past menopause with Orca whales.
- Older Orca females demonstrate leadership, potentially providing survival benefits during food shortages.
- Global increases in female lifespan are linked to reduced mortality and increased activity in older age.
Conclusions:
- The extended post-reproductive lifespan in females may offer kin survival advantages.
- Promoting women's fitness and lifestyle interventions is crucial for preventing chronic diseases.
- Healthcare professionals should encourage healthy aging strategies for women.
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