(INDEPENDENT) — The key to eternal life could be a procedure to lengthen chromosomes.

The procedure would allow scientists to lengthen telomeres, the protective caps that are on the end of chromosomes and shorten with age.

The telomeres protect chromosomes from getting damage as cells divide and grow. But as they do, they slowly become shorter and eventually are unable to protect the chromosomes. When that happens, they are liable to deteriorate — thought to be a key part of the ageing process.

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