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  1. 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 …

  2. 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 …

  3. 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.

  4. Strategies to prevent heart disease - Mayo Clinic

    Aug 17, 2023 · Heart disease is a leading cause of death. You can't change some risk factors for it, such as family history, sex at birth or age. But you can take plenty of other steps to lower …

  5. Heart Failure - What Is Heart Failure? | NHLBI, NIH

    Mar 24, 2022 · Heart failure is a condition that occurs when your heart can't pump enough blood for your body's needs. Learn about the symptoms, causes, risk factors, and treatments for …

  6. 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.

  7. 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 …

  8. Heart arrhythmia - Symptoms and causes - Mayo Clinic

    Oct 13, 2023 · A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. A heart arrhythmia occurs when the electrical signals that tell the heart to beat don't work properly. The heart may …

  9. 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 …

  10. Heart-healthy diet: 8 steps to prevent heart disease - Mayo Clinic

    Apr 4, 2024 · Certain foods can raise your risk of heart conditions. Learn eight ways to get started on a diet that's good for your heart.