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Updated: Mar 18, 2026

Surveying Low-Cost Methods to Measure Lifespan and Healthspan in Caenorhabditis elegans
Published on: May 18, 2022
[We are living longer, but are these additional years spent in good health?]
M L Essink-Bot1, D J H Deeg, W J Nusselder
1Academisch Medisch Centrum, Universiteit van Amsterdam, afd. Sociale Geneeskunde, Amsterdam.
Abstract:
Life expectancy in western countries has increased continuously over recent years. The issue at stake is if this rise includes healthy years. The answer depends on the health indicator used, e.g., perceived health, disability, or cognitive impairment. A study by Jagger et al. (2016) provides evidence for an increase in life expectancy without cognitive impairment and an absolute compression of cognitive impairment between 1991 and 2011. Information on life expectancy without cognitive impairment is not yet available for the Netherlands. Similar to England, Dutch trends in life expectancy in excellent or good self-perceived health and in life expectancy without severe disability are favourable, although less pronouncedly so. Dutch and English data suggest that the additional years lived by the population are at least partly spent in good health.
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