Natural selection does not disappear with age, according to a new evolutionary demographic model. This conclusion is at odds with the widespread belief that ending reproduction relaxes purifying selection on alleles that increase our ageing body’s vulnerability to diseases such as cancer, Alzheimer’s or diabetes.
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The author declares no competing interests.
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Milot, E. How natural selection shapes our later years. Nat Ecol Evol 5, 271–272 (2021). https://doi.org/10.1038/s41559-020-01374-z