Tech | October 16, 2010 | 9 comments

Is science on the brink of creating the elixir of life?

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UtopianSky
Eternally youthful: Cliff Richard, 69, appears toned and bare chested in his 2011 calendar

Once I had a very odd dinner with an elderly and distinguished scientist who told me how he planned to live for ever - or at least for a very long time indeed.

We ate in his beautiful house by the sea in California. Our meal consisted of one bowl of rice each and a glass of water.

With this extreme diet, my host said - limiting himself to 800-1,000 calories a day (the average male is recommended to consume 2,500) - he hoped to stave off death for many more decades.

Such a regime was based on the well-established theory that by reducing calorie intake, people can dramatically increase their lifespans. This had been shown, after numerous scientific investigations, to work in animals from fruit flies to mice.

Professor Roy Walford, a biologist at UCLA, was 74 years of age when I met him. He had no doubt that extreme calorie restriction would work in people, too. However, despite his punishing diet, he was to die five years later from the auto-immune disorder Lou Gehrig’s disease.

Seventy-nine years was a little better than the three score years and ten which have been approximated as the human lot since Biblical times - but his innings only matched the average lifespan for an educated, middle-class white California male of his generation.

It is tempting, then, in the light of this story, to write off the theory that by eating the bare minimum we can slow the ageing process.

But it seems Professor Walford was probably on to something, even if the fates conspired to ensure that he personally did not benefit from his diet thesis. For there is a growing scientific consensus that ageing - against which humanity has been battling for millennia - might not be inevitable.
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