How blood pressure, lipids, glucose and visceral fat hold up the years that matter — and what a single Healthspan score is really telling you.
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For most of my career as an interventional cardiologist, the job arrived too late. By the time a patient reached my catheter laboratory with chest pain, the disease had been building silently for twenty or thirty years. We were superb at fixing the crisis and largely powerless to prevent it. Since retiring from the NHS I have spent my time on the opposite end of that timeline — the prevention end — and the further back you look, the simpler the picture becomes.
Strip away the noise and almost everything that shortens a healthy life through heart attack, stroke, type 2 diabetes and even much vascular dementia comes down to a short list of measurable problems. Four of them. I call them the four pillars.8
The dashboard renders this literally. A heavy stone lintel — labelled Cardiometabolic Healthspan — sits across the top, supported by four classical columns. Each column is one pillar, and each carries a score from 0 to 100. The taller and greener the column, the better that pillar is supporting you. Amber means borderline; red means the column is doing more leaning than lifting.
Why these four and not a longer list? Because each one is causal (it does real damage, not just travels alongside it), modifiable (you can change it) and measurable (you can track whether you are winning). Cigarette smoke is the obvious fifth element — but rather than a column, think of it as the fire or earthquake that burns or shakes all four at once, so we treat it as a hazard to remove rather than a pillar to build.
Raised blood pressure is the single most common reason an artery wears out early. It batters the lining of vessels throughout the body, stiffens them, and is the strongest modifiable risk factor we have for vascular dementia as well as stroke and heart attack. The crucial point is that it is symptomless for years — you cannot feel 150/95.
Everyone who develops coronary disease has cholesterol-laden plaque in their artery walls, and the particle that drives it is the one carrying apolipoprotein B (ApoB) — chiefly LDL. This is not controversial: the longer and lower your ApoB is kept, the lower your lifetime risk, and there is no convincing evidence that a very low level does harm.3,4 What a standard cholesterol panel can miss is the number of particles. Two people with identical LDL cholesterol can carry very different particle counts — and the small, dense LDL pattern that comes with metabolic trouble is especially damaging.
By the time a blood test flags type 2 diabetes, the underlying problem — insulin resistance — has usually been running for ten or fifteen years. Repeated glucose spikes and the high insulin levels needed to control them inflame vessels, drive fat storage and accelerate ageing in the brain as well as the heart. A single fasting glucose or even an HbA1c can look reassuring while the daily pattern tells a very different story, which is why I increasingly use continuous glucose monitoring to read a person's real-world glucose profile rather than one snapshot.
This is the pillar conventional check-ups still overlook, and the one the whole series is built around. Visceral adipose tissue — the active, inflammatory fat packed around your internal organs — is not inert storage. It behaves like a rogue endocrine organ, and its influence reaches across the temple: it pushes blood pressure up through inflammatory and nervous-system pathways, it signals the liver to make the small, dense LDL particles of Pillar II, and it is a principal driver of the insulin resistance behind Pillar III.5,6 Most insidiously it feeds itself — high insulin stores more fat, which raises insulin further — the metabolic doom loop.
This is why someone can be slim, have "normal" blood tests and the right prescriptions, yet still carry a hidden burden of organ fat that is steadily weakening the structure. We call it the thin-outside-fat-inside picture, and the bathroom scales will never reveal it.
Visceral fat is not just one of four equals. Because it actively undermines the other three columns, lowering it is often the single most efficient move you can make — improve Pillar IV and blood pressure, lipids and glucose frequently improve with it. That is the central argument of The VAT Trap: treat the fat that is sabotaging the building, and you reinforce the whole temple at once.
It is easy to feel reassured by one good number and ignore three mediocre ones. A temple does not care that one column is magnificent if another is crumbling. The dashboard therefore does two things at once: it shows each pillar individually, and it combines them into one Healthspan score out of 100, with a gauge that swings from "unhealthy" to "healthy". The aim is not a perfect mark — it is to see, at a glance, which column most needs your attention next.
This is also the difference between lifespan and healthspan. Modern medicine is good at keeping people alive after a cardiac event. It is far less good at protecting the disease-free, fully-functioning years beforehand. The four pillars are levers on healthspan specifically — and because what is good for the heart is good for the brain, strengthening them lowers the risk of dementia and several cancers along the way, not only heart attacks.
Dave is 54, not overweight on the scales, and his GP told him his cholesterol was "fine". On the dashboard his columns came out close together and all amber — blood pressure 50, lipids 52, glucose 50, visceral fat 48 — for an overall Healthspan score around 49 out of 100: borderline. Nothing screaming for an ambulance, which is exactly the problem. Four columns all leaning slightly is not four small issues; it is one structure under broad strain.
His weakest pillar was visceral fat, and his waist-to-height ratio (0.58) confirmed it. Rather than chase four separate fixes, we started with the keystone — reducing VAT through diet, resistance training to rebuild muscle, and targeted treatment. As Pillar IV strengthened, his glucose pattern settled and his blood pressure eased. One lever, several columns reinforced.
The Four Pillars dashboard turns your numbers into one Healthspan score and shows you which column to shore up first — no sign-up required.
Open the Four Pillars dashboardNo numbers yet? Start with the one anyone can take at home — your waist. Grab a tape measure today.
Almost all preventable cardiometabolic disease traces back to four measurable problems — raised blood pressure, raised ApoB, disordered glucose and insulin, and excess visceral fat — which together hold up, or undermine, your long-term healthspan. Visceral fat is the keystone, quietly cracking the other three, which is why lowering it is so often the most efficient intervention. The Four Pillars dashboard lets you see all four columns and your combined Healthspan score in one view, so you know which one to strengthen first. The simplest place to begin is a tape measure.