Staggering Alzheimer’s Risk Gap: Women Blindsided

Brain MRI scans with highlighted section and text overlay — Photo: DedMityay / Shutterstock

Maria Shriver told a room full of health leaders that most women wait too long to think about their brains, and by then, damage may already be underway.

Story Snapshot

Maria Shriver told the TIME100 Health Leadership Forum that women should start caring for brain health decades before symptoms appear.
Only one in five women know they face a higher risk of Alzheimer’s disease than men, according to a recent survey cited at the event.
Nearly two-thirds of Alzheimer’s patients are women, a gap scientists still cannot fully explain.
Shriver pushes prevention habits like exercise, sleep, diet, social connection, and mental engagement as tools women can use now.

A Warning Delivered On A Big Stage

Shriver delivered her message at the TIME100 Health Leadership Forum in New York on September 11, 2026. She told the audience women need to think about their brains “decades before symptoms show up,” not after a diagnosis arrives. The setting mattered. The forum gathers top voices in medicine and policy, giving her warning a wide audience of people who can act on it.

The survey she referenced landed hard. Only one in five women know they are more likely than men to develop Alzheimer’s disease. That gap in basic knowledge, Shriver argues, keeps women from asking their doctors the right questions or making changes early enough to matter.

Two-Thirds Of Patients Are Women, And The Reason Stays Unclear

Shriver has repeated one statistic for years: nearly two-thirds of Americans with Alzheimer’s are women. She has called this gap unexplained and unacceptable, writing that she is “determined to find out why” through fundraising and awareness work tied to the Women’s Alzheimer’s Movement. Peer-reviewed research backs the basic numbers. A 2023 review found women’s lifetime risk of Alzheimer’s at 21.2 percent by age 65, compared to 11.6 percent for men.

Scientists agree the gap exists but disagree on causes. Some research points to longevity differences, since women live longer on average and age is the biggest risk factor. Other studies push back on that explanation, pointing instead to hormonal shifts during menopause and sex-specific biological factors that longevity alone cannot account for. Shriver has told reporters that Alzheimer’s was once wrongly seen as “a normal part of aging” that treated men and women the same, a view she says science has since debunked.

Prevention Habits She Wants Women To Start Now

Shriver’s prevention list sounds almost ordinary: exercise, sleep, diet, social connection, and mental engagement. She frames these not as vague wellness advice but as specific, researched actions tied to brain outcomes. Her point is timing. Waiting until memory problems appear means missing the window when these habits do the most good, decades earlier in a person’s life.

This fits a career she has built since 2003, when her father, Sargent Shriver, was diagnosed with Alzheimer’s disease. That diagnosis pushed her from journalism into advocacy, eventually leading her to found the Women’s Alzheimer’s Movement and help launch the Cleveland Clinic’s Comprehensive Women’s Health and Research Center. Her essay writing carries the same urgency, arguing women’s health “is brain health” and should sit at the center of medical care, not the margins.

Why The Science Still Has Gaps Worth Watching

Researchers have documented sex differences in Alzheimer’s biomarkers, disease progression, and treatment response for years. A 2025 systematic review found that over 90 percent of studies examining imaging biomarkers identified clear sex-specific patterns tied to inflammation, vascular health, and lifestyle factors. Yet the field still debates how much of the gap comes from biology versus how doctors diagnose and treat women differently than men.

What Maria Shriver Wants Women to Know About Their Brain Health #Time https://t.co/TUSnJCWWSt

— #TuckFrump (@realTuckFrumper) September 11, 2026

That uncertainty does not weaken Shriver’s core message. Advocacy does not need every mechanism nailed down before urging people to act on habits that carry little downside and real potential upside. Getting more women informed about their own risk, and giving them tools to lower it, reflects the kind of personal responsibility and forward planning that serves families well long before any doctor’s appointment becomes necessary.

What Comes Next For The Movement

Shriver’s Women’s Alzheimer’s Movement has already hosted forums in Las Vegas bringing together scientists and researchers to track progress on this front. She has told audiences there that the fight needs everyone, from doctors to caregivers to philanthropists, because “there’s no single hero, there’s a movement”. Whether her prevention message shifts public behavior on a large scale remains to be seen, but the numbers she cites give women a clear reason to start paying attention now rather than later.