Science Made Simple: Your Brain Has Two Ages
EVIDENCE TO ACTION | Science Made Simple The State of Women Institute
By Dr. Odessa Lacsina, Executive Director, The State of Women Institute
Your driver's license says you're 55. But your brain? It could be living its best 47-year-old life — or, less encouragingly, acting more like it's 63.
New research out of the University of Florida reveals something genuinely surprising: your brain has two ages. The first is your chronological age — how many birthdays you've had. The second is your brain age — how your brain actually looks on an MRI scan. And here's what makes this research worth paying attention to: you get to influence which one matters more.
The Eight-Year Finding
Scientists at the University of Florida tracked 128 adults over two years and found that people with the healthiest lifestyle habits had brains that appeared up to eight years younger than their chronological age — and that their brains also aged more slowly over time, meaning the benefits kept accumulating.
Eight years. That is not a rounding error. That is a measurable, structural difference in how a brain looks on a scan, driven not by medication or medical intervention, but by daily habits.
Lead researcher Dr. Jared Tanner and his team, publishing in Brain Communications in December 2025, identified seven specific habits associated with younger-looking brains. None of them are exotic. All of them are within reach.¹
The Seven Habits
Quality sleep — not just time in bed, but actual restorative sleep
Optimism — which, the research suggests, can be practiced and cultivated
Social support — having people you can genuinely lean on
Stress management — developing the capacity to handle life's inevitable chaos
Healthy waist circumference — maintaining weight in a healthy range
No tobacco use
Positive mindset — focusing on what you can influence and control
Each habit adds another layer of protection. Critically, they work together — the benefits compound rather than simply adding up.
Why This Matters — Especially for Women
An older-looking brain is more vulnerable to memory decline, dementia, and Alzheimer's disease. And women are already at higher risk for Alzheimer's than men — making research like this particularly urgent, and particularly relevant to the health equity work at The State of Women Institute.
But here is what this research makes clear: we are not without agency. We have tools. The daily choices that shape brain health are not reserved for people with access to expensive interventions. They are, for most women, already within reach — and the evidence now tells us they matter more than we may have realized.
It's Never Too Late
One of the most important findings in this study: even people living with chronic pain — who typically show accelerated brain aging — saw protective benefits from healthy habits. The biology is not fixed. The brain responds.
Lifestyle is medicine. Your daily choices matter — not someday, but now. And you don't need to be perfect. Every small improvement counts, and the research suggests those improvements stack.
The Bottom Line
Your brain age is not set in stone. It is moldable, changeable, and responsive to the way you live. Sleep well. Stay hopeful. Stay connected. Find ways to manage stress that actually work for you.
The science is telling us something we can act on. That's the whole point of this series.
What is one habit you're going to focus on this week?
Source
¹ Tanner, J., et al. Brain Communications, December 2025. University of Florida.
Dr. Odessa Lacsina is the Executive Director of The State of Women Institute, a 501(c)(3) nonprofit working across three health equity pillars: Mental Health & Wellness, Maternal Health Equity, and Preventive Wellness.
To learn more or support women's health leadership, visitthestateofwomen.org or follow @thestateofwomen.