The document discusses cardiovascular disease (CVD), which includes heart disease and stroke. CVD is the UK's number one killer. It occurs when fatty deposits build up in the arteries, restricting blood flow and oxygen to the heart and brain. A plant-based diet can help prevent and treat CVD in several ways. It is lower in saturated fat and cholesterol than the standard Western diet, and higher in nutrients that support heart health. Factors like high blood pressure, high cholesterol levels, obesity, and smoking increase CVD risk, but following a plant-based diet can help regulate these risk factors.