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Related Experiment Video

Updated: May 26, 2026

Surveying Low-Cost Methods to Measure Lifespan and Healthspan in Caenorhabditis elegans

Surveying Low-Cost Methods to Measure Lifespan and Healthspan in Caenorhabditis elegans

Published on: May 18, 2022

Exceptional longevity is associated with decreased reproduction.

Vafa Tabatabaie¹, Gil Atzmon, Swapnil N Rajpathak

¹Institute for Aging Research, Division of Endocrinology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.

|December 27, 2011

Summary

Centenarians had fewer children and delayed childbirth compared to the general population, suggesting a tradeoff between human longevity and reproductive capacity. This finding supports theories linking lifespan with reduced fertility.

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Area of Science:

Gerontology
Reproductive Biology
Human Genetics

Background:

Leading aging theories propose a tradeoff between longevity and reproduction.
Evidence for this tradeoff is abundant in lower life forms but conflicting in humans.

Purpose of the Study:

To investigate the tradeoff between longevity and reproduction in a homogenous human cohort.
To assess reproductive patterns in Ashkenazi Jewish centenarians compared to a control group.

Main Methods:

Comparative analysis of reproductive histories in Ashkenazi Jewish centenarians and a control cohort.
Statistical evaluation of childbirth numbers and age at first/last childbirth.

Main Results:

Centenarians had significantly fewer children (2.01 vs. 2.53) than controls.
Centenarians were older at first (28.0 vs. 25.6) and last childbirth (32.4 vs. 30.3).
Reduced fertility was observed in both male and female centenarians.

Conclusions:

Human longevity may be associated with reduced reproductive ability.
Delayed reproductive maturity and fewer offspring suggest constitutional factors influencing lifespan.
Findings support the reproductive-cell cycle theory of aging in humans.