Metabolic syndrome
Metabolic syndrome is not a single illness but a cluster: several measurements drifting the wrong way at once. Each one alone may look minor; together they compound, which is precisely why they are looked at as a group.
What it is
The syndrome is defined by five measurements rather than by symptoms: waist circumference, blood pressure, triglycerides, HDL cholesterol and fasting glucose. A physician applies published thresholds and counts how many sit on the wrong side.
That construction has an unusual consequence — someone can meet the definition while feeling entirely well, and every individual value can look unremarkable to a non-specialist. The signal is in the combination.
It is best read as a summary of metabolic strain rather than a diagnosis in the ordinary sense. Insulin resistance usually sits underneath it, which is why the two topics overlap so heavily.
Why it gets attention
Because the parts reinforce each other. Raised blood pressure, disturbed lipids and rising glucose each add to cardiovascular and metabolic strain, and the combination adds more than the sum of the parts.
It is also unusually actionable: the same changes tend to move several of the five at once, so progress shows up in more than one number.
What influences the tracked measurements
The five values respond to overlapping levers, which is why they tend to move together. General information — targets and any treatment are set with a physician.
- Central fat — reducing waist circumference is the change most likely to move several of the five simultaneously.
- Regular movement — aerobic activity tends to show up in triglycerides, HDL and blood pressure; strength work adds to glucose handling.
- Alcohol — has a particularly direct effect on triglycerides and on blood pressure.
- Salt and sleep — both act on blood pressure, and poor sleep also affects glucose.
- Measuring blood pressure properly — seated, rested, same arm, repeated. A carelessly taken reading is a misleading data point, not a small error.
Counting how many criteria are met is a clinical judgement. This site presents the measurements and their printed reference ranges; it does not compute a verdict.
Which measurements are tracked
The defining five come from two places: blood pressure and waist are measured at home, the lipid and glucose values come from a blood test. Weight and visceral fat from a body-composition scale add context.
How tracking it in one place helps
Cardiometabolic brings readings from your connected devices, your lab results and your own journal into one picture: how the measurements move across weeks and months, what changed, and which questions are worth asking. The analysis is AI-assisted and advisory, not diagnostic. You can grant view access to a physician or a relative — read-only and only with your explicit consent, which you can withdraw.
The platform is in closed beta — registration is by invitation. Request an invite or sign in to your account.
Frequently asked questions
Do I have it if one value is off?
The definition requires several criteria together, and applying it is a physician's judgement, not an arithmetic exercise for the person being measured. A single value outside its printed range is a reason to discuss, not a conclusion.
How is it different from insulin resistance?
Insulin resistance describes a mechanism — cells responding weakly to insulin. Metabolic syndrome is a bookkeeping definition, counting how many of five measurements sit outside their thresholds. Insulin resistance commonly underlies the cluster.
Which of the five moves first?
It varies between people, which is one reason all five are followed rather than one. In practice waist and triglycerides often respond earliest to changes in activity and alcohol, but that is a tendency, not a rule for any individual.
What is worth bringing to a physician?
A blood-pressure log from repeated home measurements rather than a single reading, the latest lipid and glucose results, and the waist and weight trend over recent months.