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Does the ovary explain why women live longer than men?
ScienceSetúbal

Does the ovary explain why women live longer than men?

ZAP Notícias3 September 2026 at 10:45

It is widely known that women, on average, live longer than men in virtually all of the world. In Portugal, life expectancy at birth is 84.21 years for women and 78.99 for men, a difference of more than five years. This pattern is not only observed in humans, but also appears in other countries and in various animal species.

A new scientific hypothesis suggests that part of this difference in longevity may be linked to reproduction and, in particular, to the role of the ovaries. According to this theory, ovaries may not only be linked to reproduction, but may also function as a signaling center of the organism.

This hypothesis, designated as the "Reproductive Resilience Hypothesis," seeks to explain how ovarian function may influence the way the female body responds to stress and aging, contributing to greater longevity. The article indicates that this may be the key to better understanding the differences between the sexes in terms of life expectancy.

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