Science9/24/2025NYT

How Did Maria Branyas Morera, Who Was the World’s Oldest Person, Live So Long?

Maria Branyas Morera, the world's oldest person until her death at 117, lived an exceptionally long life, according to Spanish researchers. They suggest that Morera's longevity can be attributed to a genetic lottery, as she possessed certain genetic variants associated with longevity. However, experts caution that healthy genes and microbiomes alone do not fully explain exceptional longevity. Other factors, such as a healthy lifestyle, access to quality healthcare, and socioeconomic status, also play a significant role in determining lifespan. While Morera's genetics may have contributed to her remarkable longevity, her case highlights the complex interplay of various factors that influence human lifespan. The findings underscore the need for a multifaceted approach to understanding and promoting healthy aging, involving both genetic and environmental considerations.

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