Human life expectancy may max out at 115, study finds

However, according to the researchers from Albert Einstein College of Medicine in the U.S., this upward arc for maximal lifespan has a ceiling - and we have already touched it.

The team also examined the increase over time in our survival at specific ages.

Improvements in areas such as public health, diet and environment have led to a continuous rise of average life expectancy since the 19 century. A baby boy born in the United States in 1913 was expected to live to be just over 50 years old. "[For] the oldest old people, we are still not very good at reducing their mortality rates", said Vijg.

He said that if the plan worked, it should increase human life expectancy to 100 years.

The burgeoning field of regenerative medicine is working on exactly that, but so far, it has little to show for life extension.

Their findings were also supported by maximum recorded age of death figures in another database, that of the Gerontological Research Group, which records deaths from 1972 to 2015. Jan Vijg, Ph.D., chair of genetics, the Lola and Saul Kramer Chair in Molecular Genetics, and professor of ophthalmology and visual sciences at Einstein - disagrees. "But our data strongly suggest that is has already been attained and that this happened in the 1990s".

The researchers analyzed longevity recorders from every corner of the Earth. She points out that the conditions faced by people living 100 years ago were completely different to the quality of life now, making the projection of lifespans in the modern world hard to ascertain accurately.

Life expectancy has increased dramatically during the 20th century, along with a rapid decline in infant mortality as well as improved sanitation, recalled the experts. There's been little change for people reaching over the age of 100.

The U.S. -based researchers looked into data on human longevity and now say that our average life span has nearly maxed out.

Figures such as Aubrey de Grey, chief scientific officer at the Strategies for Engineered Negligible Senescence (Sens) Research Foundation, have previously claimed that the first person to reach 1,000 years old is likely to be alive today. Then, in the mid-90s, they plateaued.

The age at death of the world's oldest person has not increased since Frenchwoman Jeanne Calment died, aged 122, in 1997.

Despite Calment's extraordinary achievement, Prof. The authors conclude that medical advances have offered diminishing life span gains, and that the biological burdens of old age impose a natural upper limit to human lives.

  • Carolyn Briggs