🥚 Why Women Outlive Men, and What It Might Mean for How You Age

I’ve been diving into longevity research lately because once you see how the menopause transition is a gateway to increased risk of so many ails and chronic diseases - including, but not limited to, heart disease, diabetes, osteoporosis, and other musculoskeletal conditions, as well as mood and cognitive issues like dementia - you have to question: What the hell is going on? 

On the longevity front, we know women live longer than men. We also know that they spend more of their final years in poor health. Researchers call it the female health survival paradox. And many point to menopause as the culprit.

That means the simple answer would be estrogen. Estrogen plays so many functions in every organ system, which are all brimming with estrogen receptors; it’s easy to point to the hormone as the owner and holder of the smoking gun. Except that we also see that simply “replacing” estrogen with hormone therapy doesn’t erase all those increased risks. Sure, it helps prevent osteoporosis. But the research on heart and brain and metabolism is stickier.

So, what is it that makes us live longer, if not healthier? A team of researchers just published an intriguing theory in the journal Cell: the reproductive resilience hypothesis. Essentially, it posits that in species where staying alive improves reproductive success (because mom needs to survive to raise kids, nurse repeatedly, and help raise grandkids), the sex that bears the heavier reproductive load (that would be us) has evolved to have greater stress-resilience. That doesn’t mean we’re optimized for robust lifelong health. Just that we stick around a long time.

All Signs Point to the Ovaries

Here's the part that I think will crack open the code to bringing our health span closer to our lifespan: ovarian health. For too long, we’ve written off ovaries as our egg and hormone factories. But now we know the ovary is much more than a reproduction agent. It’s a communication hub, sending signals that coordinate maintenance and stress-resilience systems in bone, brain, immune function, and tissue repair. During our reproductive years, that ovarian-organ network hums along in the background, keeping all systems running smoothly.

The ovaries also age more quickly than our other organs–by some accounts nearly twice as quickly–before they mostly close up shop at menopause (I say mostly, because there’s new intriguing research on the immune system role they may play after menopause). In this context, menopause isn’t just “losing estrogen,” though estrogen certainly matters. We also lose that well-oiled communication network, which may be a big reason why so many systems, such as bone, metabolism, brain, and cardiovascular, take a hit in the same few years around menopause, instead of steadily going offline gradually on their own with age. 

The hypothesis also helps explain why women who have children later in life, and women who reach menopause later, tend to live longer overall — as if a longer stretch of that ovarian signaling network translates into a longer runway of systemic resilience.

It also moves us past hormone therapy as the single solution. The researchers advocate for a shift in how we do biomedical research, where the focus is often on male animals or young female animals that had never been pregnant. Instead, they contend we should be doing animal and human research that includes reproductive history, including puberty, pregnancy, lactation, menopause, hormone therapy, and ovarian surgery as key variables for investigation. 

Their ultimate goal is to understand ovarian aging, how it disrupts the communication network, and to determine whether some of the signals and systems can be maintained to protect health later in life. 

In the meantime, you can take care of your ovaries with a healthy lifestyle, including healthy nutrition. A landmark UK Women's Cohort Study of over 35,000 women found that diets richer in fish and legumes were linked to later natural menopause, while diets high in refined carbs were linked to earlier menopause — one more reason to build your plate around real food.