Rare genetic variants may help some people reach their hundredth birthday Tono Balaguer/Getty Images
A close look at the DNA of centenarians тАУ people aged over 100 years old тАУ has identified rare genetic variants that might help explain their longevity.
тАЬRare variants in ageing pathways affect human lifespan and constitute a part of the genetic architecture of human longevity,тАЭ says Zhengdong Zhang at Albert Einstein College of Medicine in New York. тАЬThere is an interplay between common and rare variants. Together they affect longevity, and I think thatтАЩs also true for any complex human тАж
