Ageing reverse.

A WAY to reverse ageing has been discovered which allows withered muscle to rebuild itself by turning back a "biological clock". The effect has already been demonstrated on human muscle tissue in the laboratory. Scientists in the US believe the breakthrough could lead to new treatments that rejuvenate and strengthen ageing bodies or combat degenerative diseases. Their findings also underline the importance of staying active for older people, since this reduced age-related muscle loss.

Prof Irina Conboy, from the University of California at Berkeley, said: "Our study shows that the ability of old human muscle to be maintained and repaired by muscle stem cells can be restored to youthful vigour given the right mix of biochemical signals." The US researchers compared muscle tissue samples from around 30 healthy men.