A gene has been identified which finds out whether the person will biologically age quickly. Researchers say that the gene can be manipulated to extend the lifespan. Cells replace themselves before dying which is not always perfect and leads the body to age.

"It is the first step to understanding why people age. Once we have a full understanding we should be able to manipulate it in a manner to influence how someone ages”, said Professor Nilesh Samani a cardiologist at the University of Leicester. He also told that chronological ageing and biological ageing are the two forms of ageing. Evidence is amassing that age-associated diseases like heart diseases and some cancers are more closely linked to biological rather than chronological age.

The study shows that individuals carrying a particular genetic variant have shorter telomeres and from a biological viewpoint, these individuals look between three and four years older. Professor Tim Spector, King’s College London told that genetically inclined people may age faster when exposed to bad environment such as smoking, obesity or lack of exercise.