Coronary Artery Disease (CAD) is a condition where the blood vessels that supply the heart, known as coronary arteries, become narrowed or blocked. This usually happens due to a buildup of fatty deposits, called plaque, which can restrict blood flow. When the heart doesn't get enough oxygen-rich blood, it can lead to chest pain, known as angina, or even a heart attack. Risk factors for CAD include high blood pressure, high cholesterol, smoking, and a sedentary lifestyle. Maintaining a healthy diet, exercising regularly, and avoiding tobacco can help reduce the chances of developing this serious condition. Early detection and treatment are crucial for managing CAD effectively.