Cardiology is a branch of medicine that focuses on the diagnosis, treatment, and prevention of diseases related to the heart and blood vessels. It deals with conditions such as coronary artery disease, heart failure, arrhythmias, and congenital heart defects. Cardiologists use tools like electrocardiograms (ECGs), echocardiograms, and stress tests to evaluate heart function and determine the best course of treatment, which may include medications, lifestyle changes, or surgical procedures.

The importance of cardiology lies in its role in managing one of the leading causes of death globally—heart disease. With the rise in sedentary lifestyles, poor diets, and stress, cardiovascular issues are becoming more common. Cardiologists not only treat heart problems but also play a key role in educating patients about heart-healthy habits, such as exercise, a balanced diet, and smoking cessation, to prevent future complications.