
How the Heart Works - How Blood Flows through the Heart | NHLBI, NIH
Jun 25, 2025 · Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava. The blood enters the heart's right atrium and is pumped to your right …
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 condition that affects …
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 unhealthy …
Heart and Vascular Diseases - NHLBI, NIH
Heart and vascular, or cardiovascular, diseases include conditions such as arrhythmias, coronary heart disease, heart attack, high blood pressure, congenital heart defects, vascular dementia, and stroke. …
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 can lead to …
Cardiovascular Medicine - Department home - Mayo Clinic
The Department of Cardiovascular Medicine is one of the largest and most comprehensive heart practices in the world. It includes more than 240 experts in congenital heart disease in adults 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.
Meet the Framingham Heart Study - NHLBI, NIH
The Framingham Heart Study is a large population and epidemiology study led by the National Heart, Lung, and Blood Institute (NHLBI). The study began over 75 years ago and follows multiple …
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 show that …