What is a "heart age" — and how to lower yours

"Your heart age is 64." If you're actually 52, that sentence tends to stop you in your tracks — which is exactly the point. Heart age is a way of translating the rather abstract idea of cardiovascular risk into a single, human number you can't ignore. Here's what's behind it.

What "heart age" actually means

Behind the scenes, doctors and pharmacists estimate your risk of a heart attack or stroke over the next 10 years using validated tools (in the UK, most commonly QRISK). Heart age simply re-expresses that risk as an age: it's the age at which someone with an ideal risk profile would carry the same level of risk as you do now.

So if your heart age is higher than your real age, your cardiovascular risk is higher than it "should" be for someone your age — and if it's lower, you're doing better than average. It's not a scan of your actual heart, and it's not a diagnosis. It's a clear, motivating summary of your risk.

What goes into the calculation

A heart-age or risk estimate typically takes account of:

• your age, sex and ethnicity;
• your blood pressure;
• your cholesterol (particularly the total-to-HDL ratio);
• whether you smoke;
• your weight / BMI;
• related conditions such as diabetes, and your family history of early heart disease.

Notice how many of those you can actually change. That's the encouraging part.

What pushes your heart age up

• High blood pressure — often silent, and one of the biggest single contributors.
• An unfavourable cholesterol profile — high non-HDL, low HDL.
• Smoking — one of the most powerful accelerators, and one of the fastest to reverse.
• Excess weight, inactivity and a poor diet.
• Unmanaged diabetes.

How to bring it down

Because so many of the inputs are modifiable, heart age responds to change — sometimes surprisingly quickly:

• Stop smoking. Nothing else moves the needle as fast; risk starts falling within weeks.
• Get your blood pressure into range — through lifestyle and, where needed, medication.
• Improve your cholesterol ratio — more fibre and unsaturated fat, less saturated fat, regular activity.
• Move most days and lose a little weight if you're carrying extra.
• Keep diabetes well controlled.

The value of knowing your heart age is that it turns "I should look after myself" into "my heart is eight years older than me — let's change that," and gives you a number to watch improve.