Why Longevity Research Should Focus on Women

Longevity research is gaining attention for women, who tend to live longer than men. However, women also experience more frailty later in life. Furthermore, some female insects and queen bees exhibit extraordinary fertility and longevity. This has led scientists from the Buck Institute for Research on Aging to propose the Reproductive Resilience Hypothesis in a new framework published in Cell.

Traditionally, aging and reproduction were thought to be mutually exclusive due to limited resources. However, this hypothesis suggests that when reproductive fitness relies on longer survival, natural selection favors longevity. This appears to be the case for many species, where females investing more in offspring tend to live longer.

The hypothesis helps explain why female mammals often outlive males, why queen insects can balance fertility and longevity, and why male lifespan can be equal or surpass female lifespan in species where fathers provide extensive infant care. Understanding these sex-specific evolutionary strategies could ultimately lead to therapies benefiting both sexes, as unlocking the secrets of reproduction in women may reveal resilience mechanisms applicable to both genders.