Cardiology is a medical specialty focused on the diagnosis, treatment, and prevention of diseases related to the heart and blood vessels. Cardiologists manage a wide range of cardiovascular conditions, including coronary artery disease, heart failure, arrhythmias, and hypertension. They perform diagnostic tests such as echocardiograms, stress tests, and cardiac catheterizations to assess heart function and detect abnormalities. Cardiology also involves the use of medications, lifestyle changes, and interventional procedures, such as angioplasty and stenting, to treat heart conditions. This specialty is vital for maintaining heart health and reducing the risk of life-threatening cardiac events.