AI Article Synopsis
- The study investigates the relationship between hypothalamic-pituitary-adrenal (HPA) axis activation and survival rates in adult female baboons.
- Researchers analyzed 14,173 fecal glucocorticoid (GC) measurements from 242 baboons over 1,634 years, finding that higher current and cumulative GCs are linked to an increased risk of death.
- A hypothetical female with high GCs could lose about 5.4 years of life compared to one with low GCs, suggesting that HPA axis activity can indicate differences in lifespan among individuals.
Article Abstract
Are differences in hypothalamic-pituitary-adrenal (HPA) axis activation across the adult life span linked to differences in survival? This question has been the subject of considerable debate. We analyze the link between survival and fecal glucocorticoid (GC) measures in a wild primate population, leveraging an unusually extensive longitudinal dataset of 14,173 GC measurements from 242 adult female baboons over 1634 female years. We document a powerful link between GCs and survival: Females with relatively high current GCs or high lifelong cumulative GCs face an elevated risk of death. A hypothetical female who maintained GCs in the top 90% for her age across adulthood would be expected to lose 5.4 years of life relative to a female who maintained GCs in the bottom 10% for her age. Hence, differences among individuals in HPA axis activity provide valuable prognostic information about disparities in life span.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8059933 | PMC |
| http://dx.doi.org/10.1126/sciadv.abf6759 | DOI Listing |
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