Women and the Longevity Gap: The Market That Hasn't Caught Up

Women live longer than men and spend more of those extra years in poor health — and almost every part of the aging economy is shaped by that fact without being designed around it. Women carry a wider healthspan-lifespan gap, make up roughly two-thirds of Alzheimer's cases, provide the majority of unpaid caregiving, and drive most household health decisions. Yet products, research, and care models in aging have historically treated the male experience as the default. That mismatch between who actually uses this market and who it was built for is one of the clearest under-served opportunities in longevity.

Here's the shape of the gap, and what it implies.

The healthspan gap is wider for women

The core statistic bears repeating because it reframes everything. The 2024 Mayo Clinic analysis of 183 WHO member states found a global healthspan-lifespan gap of 9.6 years — and the gap was consistently larger for women than men, with American women averaging roughly 12.4 years affected by disease or disability.

So the familiar framing — "women live longer" — is only half the picture. Women live longer and carry a heavier later-life burden of noncommunicable disease, frailty, and disability. Those additional years are disproportionately years of managing conditions, needing support, and interacting with a care system. If the strategic prize in longevity is compressing the gap rather than extending the tail, then women are where the largest gap sits.

Women and dementia

Nowhere is the asymmetry starker than in Alzheimer's. Women constitute about two-thirds of people living with Alzheimer's worldwide — and, importantly, research increasingly indicates this is not explained by women's greater longevity alone. Women also tend to show faster cognitive decline and greater pathological burden once diagnosed.

Researchers are actively investigating female-specific factors, including the neurological effects of the menopause transition, as contributors to this disparity. The science is unsettled and deserves care rather than overclaiming. But the strategic point stands regardless of mechanism: the single most resource-intensive condition in aging predominantly affects women, and the research base has historically under-studied why.

Add the caregiving dimension and the picture compounds: women are also the majority of unpaid dementia caregivers. They are disproportionately both the person with the disease and the person caring for someone with it.

Women as the market's primary buyer

This is the part companies most often miss. In aging and health, women are usually the decision-maker even when they aren't the patient. They make the majority of household healthcare decisions, coordinate care for parents and spouses, research options, manage appointments and medications, and choose senior living communities and services.

So in a market where women are the primary user, the primary caregiver, and the primary purchaser, the historical pattern of designing for a male-default user is not just an equity issue — it's a commercial misfire. The gap between who this market serves and how it's built is precisely where under-served demand lives.

Where the opportunity is

Reading the asymmetries points to several under-built areas:

• Midlife women's health as brain health. The menopause transition is increasingly recognized as a meaningful window for cardiovascular, metabolic, and cognitive health — and it's historically under-served. Products and services that take midlife women's symptoms seriously (rather than dismissing them) address real, articulated demand. (Brain Meets Bytes covers the science in Menopause and Brain Fog.)
• Sex-differentiated research and product design. Conditions that present or progress differently in women — cardiovascular disease, autoimmune conditions, Alzheimer's — represent both a research gap and a differentiation opportunity for companies willing to study them properly.
• Support for the woman who is caregiving. Given that women dominate unpaid caregiving, caregiver-support solutions are largely women's-market products whether or not they're framed that way. Designing with that user in mind — her time, constraints, and financial reality — improves fit.
• Financial longevity for women. Longer lives, more years of poor health, and career interruptions from caregiving combine into a distinct and under-addressed financial planning problem.
• Marketing and channel that reflects reality. If women make most decisions in this category, then messaging, channel, and product research built around a male-default user is leaving demand on the table.

The women's longevity gap is unusual among market opportunities in being simultaneously large, well-documented, and under-built. Women are the majority of the people living the longest, the majority of those living with the costliest condition of aging, the majority of those providing care, and the majority of those deciding what gets purchased. A market with that profile ought to be designed around them. Most of it still isn't — and that gap is the opportunity.