
How the Heart Works - What the Heart Looks Like | NHLBI, NIH
Mar 24, 2022 · Your heart is in the center of your chest, near your lungs. It has four hollow chambers surrounded by muscle and other heart tissue. The chambers are separated by heart …
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 …
Heart and Vascular Diseases | NHLBI, NIH
Heart and Vascular Diseases Heart and vascular, or cardiovascular, diseases include conditions such as arrhythmias, coronary heart disease, heart attack, high blood pressure, congenital …
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 …
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 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.
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 …
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 …
Atrial tachycardia - Symptoms and causes - Mayo Clinic
Atrial tachycardia risk factors include: Heart conditions such as coronary artery disease, heart valve disease and other heart diseases. Heart failure. Heart condition present at birth, called a …
Atrial fibrillation - Symptoms and causes - Mayo Clinic
Oct 3, 2025 · Atrial fibrillation (AFib) is a heart rhythm disorder. In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat. The signals go across …