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Related Experiment Video

Updated: Jun 29, 2026

Sex Stratified Neuronal Cultures to Study Ischemic Cell Death Pathways

Sex Stratified Neuronal Cultures to Study Ischemic Cell Death Pathways

Published on: December 9, 2013

Sex differences in human biological aging.

Eitaro Nakamura¹, Kenji Miyao

¹Department of Sport Sciences, Kyoto Iken College of Medicine and Health, and Department of Internal Medicine, Kyoto Second Red Cross Hospital, Nakagyo-ku, Kyoto 604-8203, Japan. naka-e@kyoto-iken.ac.jp

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences

|October 9, 2008

Summary

This study reveals women experience slower biological aging than men after 65, despite lower functional capacity. These sex differences in aging rates impact health and longevity.

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Area of Science:

Gerontology
Human Biology
Biomarkers of Aging

Background:

Understanding sex differences in human biological aging is crucial for health and longevity research.
Previous studies have indicated potential disparities in aging processes between males and females.

Purpose of the Study:

To clarify sex-specific differences in human biological aging.
To explore gender gaps in health and longevity related to aging rates.

Main Methods:

Longitudinal study of 179 individuals (86 men, 93 women) over 6-7 years.
Selection of five key biomarkers: FEV(1)/Ht(2), SBP, RBC, ALBU, and BUN.
Estimation of individual biological ages (BAS) using a principal component model.

Main Results:

Biological aging rate significantly increased beyond 65 years of age.
Women exhibited slower biological aging rates compared to men.
Women showed relatively lower functional capabilities but a slower aging trajectory.

Conclusions:

Sex differences in biological aging rates exist, with women aging slower post-65.
These disparities may confer both advantages and disadvantages for female health and longevity.
Further research is warranted to fully understand the implications of these sex-based aging patterns.