The longevity gender gap: are telomeres the explanation?

Area of Science:

• Gerontology
• Sex Differences in Aging
• Molecular Biology

Background:

• The longevity gender gap, where women generally live longer than men, is a well-documented phenomenon.
• The underlying biological mechanisms driving this difference remain incompletely understood.
• Existing theories often cite hormonal influences and cellular aging processes.

Purpose of the Study:

• To explore the complex factors contributing to the longevity gender gap.
• To propose potential biological mechanisms, including hormonal differences and somatic cell selection.
• To investigate the interplay of these factors with telomere biology and oxidative stress.

Main Methods:

• This perspective synthesizes current research on sex differences in aging.
• It discusses the roles of sex-related hormones and cellular selection.
• It examines the connection between these factors, telomere dynamics, and oxidative stress.

Main Results:

• The longevity gender gap is proposed to be multifactorial, not attributable to a single cause.
• Sex-related hormonal differences may influence aging rates and cellular resistance.
• Somatic cell selection favoring resilient cells could contribute to longer lifespans in women.

Conclusions:

• A comprehensive understanding of the longevity gender gap requires considering hormonal influences and cellular aging.
• Differences in telomere dynamics between men and women are highlighted as a key area for future research.
• Investigating sex-specific telomere biology may provide crucial insights into differential aging and lifespan.