
How the Heart Works - How the Heart Beats | NHLBI, NIH
Jun 25, 2025 · Your heartbeat is the contraction of your heart to pump blood to your lungs and the rest of your body. Your heart's electrical system determines how fast your heart beats.
Heart disease - Symptoms and causes - Mayo Clinic
Aug 13, 2024 · Symptoms Heart disease symptoms depend on the type of heart disease. Symptoms of heart disease in the blood vessels Coronary artery disease is a common heart …
What Is Coronary Heart Disease? - NHLBI, NIH
Dec 27, 2024 · Coronary heart disease is a type of heart disease that occurs when the arteries of the heart cannot deliver enough oxygen -rich blood to the heart muscle due to narrowing from …
Coronary Heart Disease Risk Factors - NHLBI, NIH
Dec 27, 2024 · Your risk of coronary heart disease increases based on the number of risk factors you have and how serious they are. Some risk factors — such as high blood pressure and …
Heart disease - Diagnosis and treatment - Mayo Clinic
Aug 13, 2024 · Learn about symptoms, causes and treatment of cardiovascular disease, a term describing a wide range of conditions that can affect the heart.
Cardiomyopathy - Symptoms and causes - Mayo Clinic
Feb 21, 2024 · Overview Cardiomyopathy (kahr-dee-o-my-OP-uh-thee) is a disease of the heart muscle. It causes the heart to have a harder time pumping blood to the rest of the body, which …
Heart Attack - Treatment | NHLBI, NIH
Mar 24, 2022 · Your doctor or emergency medical personnel may start treatment even before they confirm that you are having a heart attack. Early treatment to remove the blood clot or plaque …
Heart attack - Symptoms & causes - Mayo Clinic
Oct 9, 2023 · A heart attack occurs when an artery that sends blood and oxygen to the heart is blocked. Fatty, cholesterol-containing deposits build up over time, forming plaques in the …
Physical Activity and Your Heart - Benefits | NHLBI, NIH
Mar 24, 2022 · When done regularly, moderate- and vigorous-intensity physical activity strengthens your heart muscle. This improves your heart's ability to pump blood to your lungs …
Heart Inflammation - Causes and Risk Factors | NHLBI, NIH
Oct 10, 2023 · Viral, bacterial, and fungal infections are the main causes of heart inflammation, but other conditions or lifestyle habits can also raise your risk. Learn the causes and risk …