Women Live Longer Than Men. Scientists Might Finally Know Why.

Research reveals that women outlive men due to biological factors, including genetic advantages linked to being the heterogametic sex, challenging traditional assumptions about lifespan.

Studies indicate that female mammals, including humans, generally exhibit longer lifespans, attributed to advantages of being the heterogametic sex, which includes species like birds and mammals.
In zoos worldwide, the lifespan of female mammals consistently surpasses that of males, underscoring a pattern observed across various species, including primates and rodents.
Genetic factors, such as the presence of two X chromosomes in females, may contribute to their longevity by providing a backup for genes that can mitigate aging effects and diseases.

Why It Matters

Understanding why women live longer than men can inform health policies and interventions aimed at improving male longevity. This research may lead to better health outcomes for both genders. Additionally, insights into the biological mechanisms behind lifespan differences could advance studies in genetics and aging.