Human life expectancy increase is slowing down, according to recent research, suggesting a shift towards focusing on improving quality of life at older ages. Over the past century, advancements in health and better diets have led to significant increases in life expectancy. However, experts note that the rate of increase has significantly slowed in the last 30 years.
Researchers emphasise the need to extend healthy years rather than just adding more years to life. They caution against the misconception that extending life expectancy without ensuring those additional years are healthy could have adverse effects. The focus now is turning towards efforts to slow ageing and enhance healthspan.
Global life expectancy projections indicate a rise from 73.6 years in 2022 to about 78.1 years by 2050. The study suggests only a small percentage of the population may reach the age of 100 in most countries in this century. Radical human life extension is deemed improbable unless significant breakthroughs in slowing biological ageing are achieved.
Despite advances in medicine and public health, life expectancy gains in the world’s longest-living populations have only increased by an average of six and a half years since 1990. This falls short of earlier expectations of accelerated increases in life expectancy, with many born today anticipated to live beyond 100 years.
The research highlights that modern medicine is leading to smaller improvements in longevity despite rapid medical advancements. The study, published in Nature Ageing, underscores the notion that life expectancy gains will continue to decelerate as more individuals encounter the challenges of ageing.
Looking at data from regions with the highest life expectancies, researchers found a deceleration in rising life expectancy globally, with notable declines in the United States. The implications of these findings extend to social, health, and economic policies, calling for a reevaluation of strategies to address the changing landscape of human longevity.