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  • 3 - Ageing

  • from SECTION 1 - BACKGROUND TO AGEING AND DEMOGRAPHICS
  • Edited by Susan Bewley, William Ledger, University of New South Wales, Sydney, Dimitrios Nikolaou
  • Book:
    Reproductive Ageing
    Published online:
    05 February 2014
    Print publication:
    01 June 2009, pp 27-32

  • Summary

    This chapter presents a discussion between experts on ageing. Data from women who have late menopause suggest they have better health fitness afterwards. That is, they live longer and appear to be healthier. On the topic of association between longevity and late age at childbirth, Jane Preston says that women did not have more children within their extended fertile period so they were not becoming more fecund during that time. Everything about ageing that we understand from animal models, and human populations, suggests that the menopause has not evolved as a result of some killer gene. Ageing is seen as a non-adaptive process by which repair mechanisms and other mechanisms just fail to be supportive at a sufficient level to keep us going a bit longer. All ageing theories are non-adaptive and ageing is a by-product of what has gone on earlier.