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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Related Experiment Video

Updated: Sep 24, 2025

Surveying Low-Cost Methods to Measure Lifespan and Healthspan in Caenorhabditis elegans
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Hormesis is an evolutionary expectation: implications for aging.

Edward J Calabrese1, Evgenios Agathokleous2

  • 1School of Public Health and Health Sciences Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA. edwardc@schoolph.umass.edu.

Biogerontology
|May 7, 2022
PubMed
Summary
This summary is machine-generated.

Evolutionary processes selected hormesis, a conserved biological strategy vital for survival and well-being across all organisms. Understanding this link is key to aging research and enhancing healthspan.

Keywords:
Adaptive responseAgingBiogerontologyEvolutionHormesisMutation

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Area of Science:

  • Evolutionary Biology
  • Toxicology
  • Gerontology

Background:

  • Hormesis, a dose-response phenomenon, is observed across diverse biological systems.
  • Evolutionary principles are fundamental to understanding biological adaptations.

Purpose of the Study:

  • To establish the inseparability of evolution and hormesis.
  • To propose that hormetic strategies are evolutionarily selected.
  • To highlight the role of hormesis in aging and healthspan.

Main Methods:

  • Literature review and synthesis of evolutionary biology and hormesis research.
  • Conceptual integration of evolutionary theory with hormetic principles.

Main Results:

  • Evolutionary processes have selected for inducible adaptive hormetic strategies.
  • Hormesis is a highly conserved biological feature, present from bacteria to humans.
  • The integration of evolution and hormesis is crucial for understanding aging.

Conclusions:

  • Evolution and hormesis are biologically intertwined.
  • Hormetic strategies are essential for organismal well-being and survival.
  • This integration offers new avenues for healthspan enhancement and aging research.