Heart disease is a leading cause of death in both men and women. For decades, our health authorities have told us that heart disease is caused by fat and cholesterol clogging up the coronary arteries, and immense resources have been directed at lowering cholesterol levels. Clinical guidelines have been introduced that are designed to capture those people deemed eligible for cholesterol-lowering medications - the latest clinical guidelines suggest that more than 1 billion people worldwide are eligible for statins. However, the cholesterol guidelines have been heavily criticised. Increasingly,...