Study finds that human aging speed is influenced by which region of the world people live in

A Stanford Medicine-led study found that both ancestry and place of residence shape biological aging.

Researchers analyzed multiomics and health biomarkers from 322 people of European, East Asian, and South Asian ancestry living in different regions.

Ancestry-linked traits persisted across locations, while geography also influenced aging rates plus immune, metabolic, and microbiome patterns.

The findings suggest aging is shaped by both genetics and environment, supporting more personalized medical and nutrition guidance.