
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 …
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 …
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 …
Omega-3s for heart health? Exploring potential benefits and risks
Oct 22, 2024 · NHLBI feature article explores the potential benefits and risks of omega-3 supplements, including fish oil, for heart health.
Spotlight on UPFs: NIH explores link between ultra ... - NHLBI, NIH
Mar 5, 2025 · In addition to heart disease, studies have linked UPFs to weight gain, hypertension, type 2 diabetes, chronic obstructive pulmonary disease, cancer, and other problems. Studies …
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 …
Take Action Toward Better Heart Health: | NHLBI, NIH
Take Action Toward Better Heart Health: Eat a Heart-Healthy Diet A healthy diet that is low in sodium and saturated fat is key to heart disease prevention. Try the highly rated Dietary …
Conditions Treated by Heart Surgery - NHLBI, NIH
Jun 1, 2022 · Heart surgery can be used to treat a variety of heart problems. The type of surgery you have will depend on what heart problem you have, your age, and your overall health, as …
Heart Valve Diseases - Causes and Risk Factors | NHLBI, NIH
Mar 24, 2022 · Heart valve diseases can either be present at birth (congenital) or acquired over time from another disorder or event such as an injury or illness. Learn about the causes of …