Heart disease is India's leading cause of death, and it starts years earlier than you'd think

Nearly one in three deaths in India is from cardiovascular disease, more than any other cause. It doesn't start in the chest. It starts with the same glucose, blood pressure, and cholesterol numbers that show up on an ordinary blood report, often a decade before anyone notices.

Ask most people what's most likely to kill them and cancer usually comes up first. The actual answer, year after year in India, is the heart. Not an accident, not an infection: the slow, mostly silent narrowing of blood vessels that ends in a heart attack or a stroke, and it accounts for more deaths than any other single cause.

The scale of it

• Cardiovascular disease, mainly heart attack and stroke, causes an estimated 31% of all deaths in India, more than any other cause (Registrar General of India, Report on Causes of Death 2021-2023).
• 101 million people in India have type 2 diabetes and 136 million have prediabetes, both established drivers of cardiovascular risk (ICMR-INDIAB, The Lancet Diabetes & Endocrinology, 2023).
• 35.5% of adults, roughly 315 million people, have high blood pressure, one of the strongest and most modifiable cardiovascular risk factors there is (ICMR-INDIAB, 2023).

It's not a separate problem from your metabolic health

Heart disease rarely shows up out of nowhere. It's usually the end point of the same handful of markers building for years: elevated glucose and insulin resistance damaging blood vessel walls, high blood pressure stiffening arteries, and an unfavourable cholesterol profile depositing plaque inside them. Each one on its own raises risk. Together, which is how they usually show up, the risk compounds. That's why a cardiologist and an endocrinologist end up looking at almost the same blood report.

“By the time chest pain shows up, the arteries involved have often been narrowing for a decade or more. The blood markers were visible the whole time.”

What's actually worth tracking

None of the major drivers of cardiovascular risk, glucose, blood pressure, cholesterol, waist-to-height ratio, require anything exotic to measure. They're on or near a standard annual blood panel. The part that usually goes missing isn't the test. It's someone connecting the dots between them, and a plan that moves all of them together instead of treating each number as its own unrelated problem.

• Fasting glucose and HbA1c: early insulin resistance, years before diabetes.
• Blood pressure: one of the most consistently modifiable risk factors through weight and activity alone.
• A full lipid panel, ideally including ApoB: particle-level risk that total cholesterol alone can miss.
• Waist-to-height ratio: a closer proxy for the visceral fat driving all three than BMI.

This is the case for treating metabolic health as one connected system rather than a scale number or a single lab flag. The same plan that improves glucose and blood pressure is, almost by definition, the plan that's also protecting the heart.