Scientists believe that they have identified the gene process that is linked to aging and the results are very interesting. For example, people age at different rates as programmed by DNA.
A structure called a telomeres, inside the gene seems to be the candlestick that is burnt by time. As cells divide and are continually replaced, the wick of the telomere will continue to shorten. Inheritance dictates how long the telomere is to begin life and the rate of shortening also seems to be influenced by inheritance.
Professor Tim Spector from King's College London and director of the TwinsUK study, who co-led this project, added: "Genetically susceptible people may age even faster when exposed to proven 'bad' environments for telomeres like smoking, obesity or lack of exercise - and end up several years biologically older or succumbing to more age-related diseases."
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