Is It Too Late to Prevent Heart Disease at 50?

The study, published in the New England Journal of Medicine in 2026, imaged the arteries of 16,808 healthy adults aged 18 to 70 in Denmark and Spain, none of whom had any known heart or vascular disease. Researchers used ultrasound of the neck and groin arteries plus a CT scan of the heart arteries to look for plaque.

Overall, 57% already had silent atherosclerosis somewhere. Broken down by age it is starker: around 8% of people in their late twenties, roughly 1 in 3 men in their thirties, about half of men and a third of women by 50, and 98% of men and 92% of women by age 70. So is it too late to prevent heart disease by midlife? For a large share of people in Singapore and everywhere else, the plaque has already started.

Atherosclerosis is not something that switches on at 60. The NEJM data show it building from the twenties, usually starting in a single territory — most often the carotid arteries in the neck or the femoral arteries in the groin — before spreading. In people in their thirties, only about 6% of men and under 3% of women had plaque in two or three territories; by their sixties, more than half of men did.

Two other patterns stand out. Plaque volume rises exponentially with age rather than in a straight line, so the gap between a well-managed and a poorly-managed set of arteries widens fast. And men run about 5 to 10 years ahead of women, a head start women largely lose after menopause. We see this in our Singapore clinic constantly: a fit 45-year-old with a normal treadmill test and a carotid scan that already shows early plaque. None of it produces symptoms until a plaque narrows an artery enough to matter, or ruptures.

Here is the uncomfortable part. The bulky, fibrous and calcified core of an established plaque does not meaningfully melt away, whatever a supplement label promises. Think of cholesterol exposure the way we think of cigarettes: it is the cumulative dose that counts — ‘cholesterol-years’, much like pack-years. Every year spent in your thirties and forties with an untreated LDL of 4 or 5 mmol/L, or a blood pressure of 150/95, is banked in the artery wall.

So if you are asking is it too late to prevent heart disease in the literal sense of having pristine arteries again at 50 — then yes, for most people who did not manage their numbers earlier, that particular boat has sailed. In Singapore we cannot un-bank those cholesterol-years. What we can still do is change everything that happens next.

The plaque you already have is not the same as the heart attack you might have, and the second one is very much still preventable. Lowering LDL cholesterol reduces cardiovascular events at every age, and because a 55-year-old with plaque starts from higher baseline risk than a 35-year-old, the absolute benefit of treatment is often larger, not smaller.

Aggressive LDL lowering — with a statin, and ezetimibe or a PCSK9 inhibitor if needed — can shrink the soft, lipid-rich core of a plaque and thicken its cap, making it far less likely to rupture, even when the calcium score barely moves. Add good blood-pressure control and stopping smoking, where the excess risk falls substantially within a few years. The goal simply shifts: from preventing plaque to preventing the event. That is why the honest answer to is it too late to prevent heart disease is, in the way that matters, no. This is the conversation we have most often at our clinic on Orchard Road with patients who have just turned 50.

If you are around 50 and have never had a proper cardiovascular assessment, this is the moment. In Singapore we would check a fasting lipid panel — ideally including apolipoprotein B, and a one-off lipoprotein(a) — blood pressure properly, and an HbA1c for hidden diabetes. To see what is actually in your arteries rather than guess, a coronary calcium score takes two minutes, and a CT coronary angiogram gives more detail if needed.

Rough private costs here: a first cardiology consultation with bloods runs about SGD 150 to SGD 350, a calcium score SGD 250 to SGD 500, and a CT coronary angiogram SGD 800 to SGD 1,500. Medisave can often be applied when the test is clinically indicated. The results turn a vague worry into specific numbers and a specific plan.

If you are reading this in your thirties or forties, you are the person this study is really for. The cheapest plaque to deal with is the plaque you never lay down. That means knowing your LDL cholesterol and blood pressure now, not at 55, and treating them when they are borderline rather than waiting for them to become a problem.

A decade with an LDL around 2 instead of 4 mmol/L is a decade of cholesterol-years you simply never bank. The same goes for blood pressure, weight, tobacco and blood sugar. It is far less dramatic than a stent, and it is the single most effective thing anyone in Singapore can do about heart disease. Asking is it too late to prevent heart disease at 40 is like asking at half-time — the score matters, but most of the match is still ahead.

See a cardiologist rather than relying on a basic screening if you have a first-degree relative who had a heart attack or stent before 60, a high coronary calcium score, several risk factors together, or any chest tightness, breathlessness or unusual fatigue on exertion. A normal treadmill test does not rule out plaque — it only shows whether a narrowing is severe enough to limit blood flow today.

In Singapore you do not need a referral to see a cardiologist privately. Bring recent blood results and a list of medications. At our clinic at Paragon Medical Centre the visit is short and practical: work out what is in your arteries, set cholesterol and blood-pressure targets that fit your risk, and decide whether you need imaging or simply a firm plan and a follow-up.