Tuesday, January 29, 2008

Being a Couch Potato Speeds Up Ageing

Leading a sedentary lifestyle may make us genetically old before our time, a study suggests.

A study of twins found those who were physically active during their leisure time appeared biologically younger than their sedentary peers.

The researchers found key pieces of DNA called telomeres shortened more quickly in inactive people. It is thought that could signify faster cellular ageing.

The King's College London study appears in Archives of Internal Medicine.

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