But the reality of the ageing process is a constant. 40 this year.
This could reduce the effects of stress on the ageing process.
Professor Tim Spector of King's College London, who also works on the ageing process, says the focus is not on extending life, but on extending good health.
BBC: Stop, rewind: the scientists slowing the ageing process
"I think there is a perception that dementia is an inevitable part of the ageing process and there is nothing you can do about it, " he explained.
Most intriguingly of all, it seems that it can slow the process of ageing.
If, nevertheless, a wide range of diseases now put down to the general process of ageing do turn out to be infections, a new field of treatment will open.
"Findings on the genetics of a particular nematode worm may not be directly relevant to the complex process of ageing as it happens in higher animals such as the human, " the association added.
Regardless of the biochemical details, the most intriguing thing Dr Baker's result provides is a new way of thinking about how to slow the process of ageing and one that works with the grain of nature, rather than against it.
ECONOMIST: A way to counteract part of the process of growing old
These findings suggest that our understanding of the causative factors of atherosclerosis is incomplete, and that atherosclerosis could be inherent to the process of human ageing.
Even in animals as short-lived as mice, she points out, studying ageing is a long-winded process.
South Africa is in the process of overhauling of its ageing rail network.
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