Every ten minutes in the UK, someone dies from coronary heart disease.
Not every hour. Every ten minutes. Heart disease is not a historical problem that medicine has solved — it remains the leading cause of death in this country, ahead of all cancers combined. And for Black and African adults the picture is worse: higher rates of hypertension driving earlier arterial damage, higher rates of diabetes compounding cardiovascular risk, and a healthcare system that does not always identify these risks as early or manage them as aggressively as it should.
The paradox is that heart disease is also among the most preventable conditions. Up to 80% of premature cardiovascular deaths could be avoided with interventions that are available, affordable, and evidence-based. The gap between what is possible and what actually happens is not about medical knowledge — that knowledge exists. It is about who receives the conversation early enough to act on it.
This guide is that conversation.
Why Black adults face higher cardiovascular risk
The disparity is real and consistent across UK and US data. Black adults have higher rates of hypertension, diabetes, and obesity — the three major modifiable risk factors for heart disease. They develop these conditions earlier. They are more likely to have multiple risk factors simultaneously.
Beyond modifiable risk factors, research has identified specific biological differences in inflammatory markers, clotting factors, and arterial stiffness that contribute to elevated cardiovascular risk in people of African ancestry independent of traditional risk factors.
The chronic stress of racism — the physiological effects of navigating discrimination, microaggressions, and systemic barriers — has documented effects on blood pressure, cortisol levels, and inflammatory markers. This is not speculation. It is measured in the data.
The symptoms people ignore — and the ones that mean call 999
Classic heart attack symptoms:
- Central crushing chest pain or pressure — "like an elephant sitting on my chest"
- Pain radiating to the left arm, jaw, neck, or back
- Sweating, nausea, vomiting
- Breathlessness
- Sense of impending doom
Less recognised symptoms — more common in women and Black patients:
- Unusual fatigue — extreme, unexplained tiredness in the days before a heart attack
- Indigestion-like discomfort
- Upper back pain
- Jaw pain without chest pain
- Shortness of breath without chest pain
Research consistently shows that Black patients and women present with atypical symptoms more often than white men — and are more likely to have those symptoms dismissed or attributed to anxiety or gastrointestinal causes. If something feels wrong with your heart, insist on an ECG.
The major risk factors — and which ones matter most
Hypertension (high blood pressure): The single most important modifiable risk factor for both heart attack and stroke. See our dedicated hypertension guide.
Smoking: Doubles the risk of heart disease. Causes direct arterial damage, promotes clot formation, reduces HDL cholesterol. Stopping smoking is the single most impactful thing a smoker can do for cardiovascular health — the risk reduces significantly within one year of stopping.
Diabetes: Damages blood vessels and nerves throughout the body. People with diabetes have 2–4 times the cardiovascular risk of those without. Tight blood sugar control reduces this risk.
High LDL cholesterol: See our cholesterol guide. LDL deposits in arterial walls are the fundamental mechanism of atherosclerosis.
Physical inactivity: Independent cardiovascular risk factor. 150 minutes of moderate aerobic activity per week reduces cardiovascular mortality by approximately 35%.
Obesity: Particularly central obesity (excess abdominal fat) drives insulin resistance, inflammation, and multiple cardiovascular risk factors simultaneously.
Stress and poor sleep: Chronic psychological stress and sleep deprivation both increase cardiovascular risk through multiple mechanisms including cortisol elevation, blood pressure effects, and inflammatory pathways.
Case study: Kwame's wake-up call
Kwame, 52, a civil servant from Ghana based in Birmingham, came to see me after his brother died suddenly of a heart attack at 54. He had no symptoms himself but was understandably frightened.
His risk assessment revealed: blood pressure 148/92 (hypertensive), total cholesterol 6.2 with LDL 4.1, BMI 31, fasting glucose 6.2 (prediabetic range), sedentary job, 20-year smoking history (stopped 5 years ago), significant work stress.
His QRISK3 score: 24% — meaning a 24% chance of a cardiovascular event in the next 10 years. High risk.
We made a plan:
- Started amlodipine for blood pressure
- Started atorvastatin 40mg for cholesterol
- Referred to NHS Diabetes Prevention Programme
- Walking programme — 30 minutes daily, built up over 8 weeks
- Stress management referral
Two years later: blood pressure 124/78, LDL 1.8, HbA1c 42 (normal range), lost 8kg, walking 45 minutes five days a week.
His QRISK3 score: 11%. Still elevated but reduced by more than half through sustained, evidence-based intervention.
"My brother's death saved my life," he told me. "I just wish I hadn't needed that to make me act."
What actually reduces cardiovascular risk — the evidence
Mediterranean diet: The PREDIMED trial demonstrated that a Mediterranean dietary pattern reduced major cardiovascular events by approximately 30% compared to a low-fat diet. This is the strongest dietary evidence available.
Exercise: 150 minutes of moderate aerobic exercise weekly is the minimum. More is better up to a point. Even walking is sufficient — it does not need to be intense.
Statins: For people with elevated cardiovascular risk (QRISK3 above 10%), statins reduce cardiovascular events by approximately 25–35% regardless of baseline cholesterol. They are among the most evidence-supported preventive medications in medicine.
Aspirin: No longer recommended for primary prevention (preventing a first event) in most people — the bleeding risk outweighs the benefit. Recommended for secondary prevention (after a heart attack or stroke).
Blood pressure treatment: Reducing systolic blood pressure by 10mmHg reduces cardiovascular events by approximately 20–25%.
Stopping smoking: Within 1 year of stopping, cardiovascular risk falls to half that of a continuing smoker. Within 15 years, it approaches that of a never-smoker.
Know your numbers
Everyone over 40 should know four numbers. Ask your GP:
- Blood pressure — target below 130/80
- Total cholesterol and LDL — LDL below 3.0 for most people
- HbA1c — below 42 mmol/mol (non-diabetic range)
- QRISK3 score — your 10-year cardiovascular risk
These four numbers tell you more about your heart health than any symptom. Most heart attacks happen to people who felt completely well beforehand.
Sources: British Heart Foundation — Heart Statistics 2024; NICE Clinical Guideline CG181 — Cardiovascular Disease Risk Assessment (2023 update); PREDIMED trial, NEJM 2013; Cholesterol Treatment Trialists Collaboration, The Lancet 2012; Williams B et al, European Heart Journal 2018 (hypertension guidelines); NHS Digital — Health Survey for England 2022.
