Cardiovascular disease (CVD) remains the leading cause of death globally. Yet unlike outbreaks or epidemics that command immediate alarm, CVD progresses quietly - built over decades through patterns of behaviour, biology, and inequality.

In this episode of Medlock Holmes: Global Public Health, Holmes turns his attention to the slow-burning architecture of chronic disease.

We explore:

• Global burden and epidemiological transition• Coronary heart disease, stroke, and heart failure• Modifiable risk factors - tobacco, diet, physical inactivity, hypertension, diabetes• Non-modifiable determinants - age, genetics, sex• Social gradients and inequity• Population vs high-risk strategies• Prevention across the life course• Policy-level interventions and structural prevention

Holmes traces how cardiovascular disease shifted from a condition of affluence to a global pandemic affecting low- and middle-income countries disproportionately.

This episode examines the tension between individual responsibility and environmental design - between choice and context.

Public health success in CVD is rarely dramatic. It is measured in reduced salt intake, tobacco taxation, better primary care, improved lipid control, and incremental gains in survival.

The detective story here is long-term. The culprit is cumulative exposure.

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Key Takeaways

• Cardiovascular disease is the leading global cause of mortality• Risk accumulates over time through behavioural and social determinants• Prevention requires both individual and population-level strategies• Structural policies (taxation, regulation, urban design) significantly influence outcomes• Inequality plays a central role in cardiovascular burden• Early-life exposures shape adult cardiovascular risk

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