Phenomena and Processes

Aging

The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.

MeSH Record

Classification

Broader headings

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MeSH Record

See Also

MeSH Record

Synonyms

3 entry terms
  • Aging, Biological
  • Biological Aging
  • Senescence

MeSH Record

Aspects Covered

13 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, drug effects, ethics, ethnology, genetics, immunology, metabolism, pathology, physiology, psychology, radiation effects, urine.

MeSH Record

Indexing Annotation

human & animal; IM; aging process anywhere between birth & old age; differentiation from other age-related terms; "aging" of lower organisms, cultures, drugs, etc. is probably TIME FACTORS; AGING, PREMATURE is also available

MeSH Hierarchy

Tree Number

  1. G07.345.124w

AMA Style

References

  1. National Library of Medicine. Aging. Medical Subject Headings (MeSH). 2026. Unique ID D000375. http://id.nlm.nih.gov/mesh/2026/D000375
  2. Aging. In: Wikipedia. https://en.wikipedia.org/wiki/Ageing
  3. Aging. In: Wikidata. https://www.wikidata.org/wiki/Q332154