One day, humans could live to 150 years or beyond, according to new study. The work stands in stark contrast to another recent paper that have set an upper limit of 115 years on human lifespans.
Last October, a study published in Nature concluded that the upper limit of human age is peaking at around 115 years.
Now, however, a new study published in Nature by McGill University biologists Bryan G. Hughes and Siegfried Hekimi comes to a remarkably different conclusion. Through an analysis of the lifespan of the longest-living individuals from the USA, the UK, France and Japan for each year since 1968, Hekimi and Hughes found no evidence for such a limit, and if such a maximum exists, it has yet to be reached or identified, Hekimi says.
"Extending trend lines, we can show that maximum and average lifespans, could continue to increase far into the foreseeable future."
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“We just don’t know what the age limit might be. In fact, by extending trend lines, we can show that maximum and average lifespans, could continue to increase far into the foreseeable future,” Hekimi says.The observable trend of average lifespans is widely known. In 1920, for example, the average newborn Canadian could expect to live 60 years; a Canadian born in 1980 could expect 76 years, and today, life expectancy has jumped to 82 years. Maximum lifespan seems to follow the same trend.
It’s impossible to predict what future lifespans in humans might look like, Hekimi says. Some scientists argue that technology, medical interventions, and improvements in living conditions could all push back the upper limit.
“It’s hard to guess,” Hekimi adds. “Three hundred years ago, many people lived only short lives. If we would have told them that one day most humans might live up to 100, they would have said we were crazy.”
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