What are the heart diseases?(test)

Heart disease is a catch-all phrase for a variety of conditions that affect the heart’s structure and how it works. Heart disease is the leading cause of death in the United States. Coronary heart disease is a type of heart disease where the arteries of the heart cannot deliver enough oxygen-rich blood to the heart. It is also sometimes called coronary artery disease or ischemic heart disease. About 20.5 million U.S. adults have coronary artery disease, making it the most common type of heart disease in the United States, according to the Centers for Disease Control and Prevention. Coronary artery disease affects the larger coronary arteries 

Test 2

Test 1