<b><strong>The New Age of Heart Health </strong></b>
Wearables give us a new way to think about heart health, but the strategies to get there are still the same.
Reported by Women's Health Magazine.
Your fitness tracker knows something your doctor hasn't officially signed off on yet: the number staring back at you from your wrist might be the most motivating thing in your wellness routine. Garmin calls it "fitness age." Oura calls it "cardiovascular age." Apple, Fitbit, and WHOOP all have their own versions. Whatever the branding, the concept is the same — a simplified score designed to make you care about your heart. According to Women's Health Magazine, the metric is calculated using a combination of data points like VO2 max, resting heart rate, heart rate variability, sleep, and activity intensity, pulled against benchmarks from the CDC and WHO.
Here's the catch: cardiologists want you to know that "cardiovascular age" isn't actually a clinical term. "You cannot change the age of your heart," says Sharonne N. Hayes, MD, founder of the Women's Heart Clinic at the Mayo Clinic. Your heart is exactly as old as you are — full stop. What these metrics are actually measuring is your cardiovascular risk, and that distinction matters. Heart disease kills 2,500 Americans every single day — one person every 34 seconds, per the American Heart Association — but Stacey Rosen, MD, executive director of the Katz Institute for Women's Health at Northwell Health, is quick to point out that most heart disease is preventable. So if a gamified number on your wrist is what gets you moving, the doctors are largely on board. "By addressing something like 'cardiovascular age,' you're automatically addressing a lot of those risk factors," says Tamanna Singh, MD, director of the Sports Cardiology Center at Cleveland Clinic.
What Your Wearable Actually Gets Right
The real value of fitness trackers isn't the score itself — it's the trend data over time. "Wearables allow you to put numbers over time to your body," says Aaron Leigh Baggish, MD, founder of the Cardiovascular Performance Program at Massachusetts General Hospital. Watching your VO2 max climb or your resting heart rate drop tells a more honest story than any single snapshot. Chris Curry, MD, clinical director of women's health at Oura, frames it as body literacy: the idea that you have genuine agency over the trajectory of your health. Beyond motivation, the practical nudges matter too — those sit-less reminders, for instance, are backed by real data linking prolonged sitting to high blood pressure, obesity, and type 2 diabetes. For a more clinically grounded read on your risk, Dr. Rosen recommends the American Heart Association's PREVENT Calculator, which estimates your cardiovascular disease risk over the next decade and pairs well with your next annual bloodwork.
That said, wearables aren't a replacement for an actual physician, and Dr. Rosen is honest that they're not for everyone. For people prone to health anxiety, obsessing over the data can do more harm than good. The sweet spot is using your tracker as a conversation starter and a trend monitor — not a diagnosis. "Data is just data — you know your body best," Dr. Singh says.
The bottom line: your "fitness age" isn't science, but your habits are — and if a number on a screen is what finally makes heart health feel personal, that's a win worth tracking.
Read the original at Women's Health Magazine.
