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  1. Heart rate: What's normal? - Mayo Clinic

    Oct 22, 2025 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a health condition.

  2. Exercise intensity: How to measure it - Mayo Clinic

    Aug 25, 2023 · To get the most out of exercising, aim for moderate to vigorous exercise intensity. See how to judge your exercise intensity.

  3. Bradycardia - Symptoms and causes - Mayo Clinic

    Dec 13, 2024 · Bradycardia (brad-e-KAHR-dee-uh) is a slow heart rate. The hearts of adults at rest usually beat between 60 and 100 times a minute. If you have bradycardia, your heart …

  4. How to take your pulse - Mayo Clinic

    Apr 16, 2024 · A pulse is the heart rate. It's the number of times the heart beats in one minute. The pulse can be measured using the radial artery in the wrist or the carotid artery in the neck. …

  5. Mayo Clinic corrected QT interval (QTc) calculator - Medical ...

    Worried about QT interval prolongation? This online evidence based resource will help guide you how to measure the QT interval and calculate the QTc value with an easy to use calculator …

  6. Tachycardia - Symptoms and causes - Mayo Clinic

    Dec 15, 2023 · Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. Many types of irregular heart rhythms, called arrhythmias, can cause …

  7. Atrial tachycardia - Symptoms and causes - Mayo Clinic

    Symptoms The main symptom of atrial tachycardia is a very fast heartbeat. Typically during atrial tachycardia, the heart beats 150 to 200 times a minute. The fast heartbeat may come and go …

  8. Blood pressure chart: What your reading means - Mayo Clinic

    Feb 28, 2024 · Checking your blood pressure helps you avoid health problems. Learn more about what your numbers mean.

  9. Supraventricular tachycardia - Symptoms and causes - Mayo Clinic

    Mar 7, 2024 · Supraventricular tachycardia (SVT) is a type of irregular heartbeat, also called an arrhythmia. It's a very fast or erratic heartbeat that affects the heart's upper chambers. SVT …

  10. Pulse pressure: An indicator of heart health? - Mayo Clinic

    Aug 18, 2023 · Pulse pressure may be a strong predictor of heart problems, especially for older adults.