Scientists have identified unique rejuvenating genes in Maria Brañas Morera, who was born in the US and was considered the oldest person in the world until her death at the age of 117. This was reported by daily.afisha.ru with reference to The Guardian.

Scientists who studied Branyas' microbiome and DNA while she was alive found that the genetic material she inherited allowed her cells to feel as if they were 17 years younger than their actual age.

The long-lived woman's gut microbiota, which plays an important role in the human body, was strikingly similar to that of an infant. This is the conclusion reached by a research team led by genetics professor Manel Esteller from the University of Barcelona, a leading expert on ageing issues.

The team found that Branyas remained mentally alert for much of her life. The main health issues she faced throughout her long years were limited to joint pain and hearing loss.

Scientists noted the impact of a healthy lifestyle that helped Branyas make the most of her unique genetic makeup. She followed a Mediterranean diet that included three servings of yogurt daily.

The centenarian abstained from alcohol and tobacco, took regular walks and maintained close ties with family and loved ones. All of these factors likely helped prevent the deterioration of her physical and mental health that could have shortened her life, the researchers concluded.

Esteller's work on Branyas was the most comprehensive study of a so-called "supercentenarian" - someone who has reached the age of 110 or more - and offered possible explanations for the longevity phenomenon.

Esteller and his colleagues hope that the results of their study will provide valuable information for developers of drugs and treatments for age-related diseases.