This document discusses different types of heart disease including ischemia and carditis. Ischemia is when the heart does not get enough blood and oxygen, often due to narrowed arteries. Symptoms include chest pain and shortness of breath. Carditis refers to inflammation of the heart and can be myocarditis (heart muscle), pericarditis (heart sac), or endocarditis (heart valves/lining). Treatment focuses on improving blood flow or reducing inflammation, while prevention emphasizes a healthy lifestyle.