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Cumulative early life adversity predicts longevity in wild baboons

Jenny Tung,E. Archie,J. Altmann,S. Alberts

Published 2016 in Nature Communications

ABSTRACT

In humans and other animals, harsh circumstances in early life predict morbidity and mortality in adulthood. Multiple adverse conditions are thought to be especially toxic, but this hypothesis has rarely been tested in a prospective, longitudinal framework, especially in long-lived mammals. Here we use prospective data on 196 wild female baboons to show that cumulative early adversity predicts natural adult lifespan. Females who experience ≥3 sources of early adversity die a median of 10 years earlier than females who experience ≤1 adverse circumstances (median lifespan is 18.5 years). Females who experience the most adversity are also socially isolated in adulthood, suggesting that social processes partially explain the link between early adversity and adult survival. Our results provide powerful evidence for the developmental origins of health and disease and indicate that close ties between early adversity and survival arise even in the absence of health habit and health care-related explanations. Adverse early life experiences can have negative consequences for health and survival in later life. Here, Tung et al. show that in female baboons, the cumulative number of adverse experiences can be a strong predictor of lifespan.

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