Why is the heart strong and sturdy?

The heart is composed of a thick, muscular layer called the myocardium, reinforced by fibrous connective tissue and a tough outer covering called the pericardium. Together, these elements provide strength and flexibility.

To pump blood and maintain blood pressure, the heart experiences constant mechanical stress which necessitates such robust composition.

Moreover, a healthy diet, regular exercise, managing other cardiac risk factors (stress, high blood pressure, abnormal cholesterol and smoking) contribute to keeping it healthy, strong and steady function with reduced likelihood of problems such as heart attacks, stroke or heart failure.