What Does a Heart-Healthy Life Actually Look Like?

World Heart Day falls on 29 September each year, coordinated by the World Heart Federation. It is a moment to step back from individual risk factors and ask a broader question: what does it actually mean to live in a way that supports long-term heart health?

Cholesterol levels and, where indicated, medication are a central part of the answer. Managing cardiovascular risk factors with evidence-based treatment is the foundation of prevention. But they sit within a wider picture.

What the evidence identifies as most important

In 2022, the American Heart Association updated its cardiovascular health framework to create Life’s Essential 8, identifying the eight factors most strongly associated with long-term heart health.

The components include diet, physical activity, nicotine exposure, sleep health, body weight, blood lipids, blood glucose and blood pressure.

What is notable about this framework is how much of the whole person it reflects, rather than a single organ or metric. It captures behaviours, biological markers and lifestyle factors together, because cardiovascular health emerges from the interaction between all of them.

Looking at each area honestly

Diet

Diet has one of the strongest evidence bases in cardiovascular medicine. Broadly, dietary patterns that are rich in vegetables, fruit, legumes, whole grains, nuts, seeds and oily fish, and low in ultra-processed foods, refined sugars and processed meat, are consistently associated with lower cardiovascular risk. No single food is the answer. The overall pattern is what matters.

Physical activity

Physical activity supports blood pressure, insulin sensitivity, body composition, sleep quality and mood. The UK Chief Medical Officers recommend at least 150 minutes of moderate-intensity aerobic activity per week, alongside muscle-strengthening activity on at least two days. The guidelines are explicit that this is not an absolute threshold: benefits are seen at levels both below and above it, and the largest gains come from moving from being inactive to being moderately active.

Sleep

Sleep is now formally recognised as a cardiovascular health factor rather than a lifestyle extra. Most adults need seven to nine hours. Regularity of sleep timing appears to matter alongside duration, as does sleep quality, which can be disrupted by stress, alcohol, shift work and obstructive sleep apnoea, several of which are treatable.

Stress and psychological wellbeing

Stress and psychological wellbeing sit alongside the Life’s Essential 8 metrics rather than within them. The American Heart Association advisory identifies psychological health and wellbeing, together with social determinants of health, as important contextual factors that shape cardiovascular health, but they are not among the eight scored components. Chronic stress is associated with higher blood pressure, poorer sleep and less favourable health behaviours. But in practice, it tends to receive less attention than the eight measurable factors.

Metabolic health

Metabolic health, encompassing blood glucose, insulin sensitivity and lipid biology, sits at the centre of much chronic cardiovascular disease. Insulin resistance is commonly associated with elevated blood pressure, an unfavourable lipid profile and raised inflammatory markers, often well before blood glucose reaches the threshold for a diagnosis of type 2 diabetes.

What a standard check does and does not cover

A blood pressure reading, a cholesterol panel and a BMI capture important information, and for many people these, combined with a formal risk score such as QRISK3, are exactly the right level of assessment. What they are not designed to show is how sleep, stress, body composition, inflammation and metabolic function are interacting in an individual patient.

A longer cardiometabolic consultation that considers these factors together can help identify contributors to risk that a brief standard screen is not designed to cover, and can support a more detailed and personalised plan for long-term heart health. It is intended to complement NHS care, not to replace it.

World Heart Day: a useful moment to take stock

For most people, the biggest cardiovascular gains come not from perfecting any single factor but from making sustainable progress across several. Moving regularly, eating mostly whole foods, sleeping well, not smoking, limiting alcohol, managing stress and knowing the key numbers are all part of the same whole.

Dr Grosser’s consultations bring conventional cardiology and a cardiometabolic assessment together for patients who want a fuller picture of their cardiovascular health. This is alongside the care of their GP and any existing specialist team.

This article is for general information and does not constitute medical advice. It is not a substitute for assessment by your GP or specialist. If you experience chest pain, breathlessness at rest, or palpitations with dizziness or blackouts, contact your GP or call 111. If you think you may be having a heart attack or stroke, call 999.

Book a consultation with Dr Konrad Grosser at KentCardio: https://kentcardio.com/book/