Sex differences in biological aging with a focus on human studies

Aging is a complex biological process characterized by hallmark features accumulating over the life course, shaping the individual's aging trajectory and subsequent disease risks. There is substantial individual variability in the aging process between men and women. In general, women live long...

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Main Authors: Sara Hägg, Juulia Jylhävä
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2021-05-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/63425
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author Sara Hägg
Juulia Jylhävä
author_facet Sara Hägg
Juulia Jylhävä
author_sort Sara Hägg
collection DOAJ
description Aging is a complex biological process characterized by hallmark features accumulating over the life course, shaping the individual's aging trajectory and subsequent disease risks. There is substantial individual variability in the aging process between men and women. In general, women live longer than men, consistent with lower biological ages as assessed by molecular biomarkers, but there is a paradox. Women are frailer and have worse health at the end of life, while men still perform better in physical function examinations. Moreover, many age-related diseases show sex-specific patterns. In this review, we aim to summarize the current knowledge on sexual dimorphism in human studies, with support from animal research, on biological aging and illnesses. We also attempt to place it in the context of the theories of aging, as well as discuss the explanations for the sex differences, for example, the sex-chromosome linked mechanisms and hormonally driven differences.
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spelling doaj.art-6edce1f651cc493abdd7c24520e40a3b2022-12-22T02:05:46ZengeLife Sciences Publications LtdeLife2050-084X2021-05-011010.7554/eLife.63425Sex differences in biological aging with a focus on human studiesSara Hägg0https://orcid.org/0000-0002-2452-1500Juulia Jylhävä1https://orcid.org/0000-0003-0250-4491Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, SwedenDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, SwedenAging is a complex biological process characterized by hallmark features accumulating over the life course, shaping the individual's aging trajectory and subsequent disease risks. There is substantial individual variability in the aging process between men and women. In general, women live longer than men, consistent with lower biological ages as assessed by molecular biomarkers, but there is a paradox. Women are frailer and have worse health at the end of life, while men still perform better in physical function examinations. Moreover, many age-related diseases show sex-specific patterns. In this review, we aim to summarize the current knowledge on sexual dimorphism in human studies, with support from animal research, on biological aging and illnesses. We also attempt to place it in the context of the theories of aging, as well as discuss the explanations for the sex differences, for example, the sex-chromosome linked mechanisms and hormonally driven differences.https://elifesciences.org/articles/63425biological agingsexual dimorphismtheories of agingage-related diseases
spellingShingle Sara Hägg
Juulia Jylhävä
Sex differences in biological aging with a focus on human studies
eLife
biological aging
sexual dimorphism
theories of aging
age-related diseases
title Sex differences in biological aging with a focus on human studies
title_full Sex differences in biological aging with a focus on human studies
title_fullStr Sex differences in biological aging with a focus on human studies
title_full_unstemmed Sex differences in biological aging with a focus on human studies
title_short Sex differences in biological aging with a focus on human studies
title_sort sex differences in biological aging with a focus on human studies
topic biological aging
sexual dimorphism
theories of aging
age-related diseases
url https://elifesciences.org/articles/63425
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AT juuliajylhava sexdifferencesinbiologicalagingwithafocusonhumanstudies