BBC News - People who look young for their age 'live longer'

BBC News - People who look young for their age 'live longer': "People blessed with youthful faces are more likely to live to a ripe old age than those who look more than their years, work shows...Danish scientists say appearance alone can predict survival, after they studied 387 pairs of twins...Key pieces of DNA called telomeres, which indicate the ability of cells to replicate, are also linked to how young a person looks...A telomere of shorter length is thought to signify faster ageing and has been linked with a number of diseases. In the study, the people who looked younger had longer telomeres. "