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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 · Exercise intensity also can be seen in your breathing and heart rate, whether you're sweating, and how tired your muscles feel. You can measure exercise intensity in two basic ways: …

  3. How fit are you? See how you measure up - Mayo Clinic

    Jan 18, 2024 · Aerobic fitness: Heart rate at rest Your heart rate at rest is a measure of heart health and fitness. For most adults, a healthy heart rate is between 60 to 100 beats per minute. To check your …

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

    Dec 24, 2025 · The American College of Cardiology and the American Heart Association divide blood pressure into four general categories. Ideal blood pressure is categorized as normal. Increased blood …

  5. Ejection fraction: An important heart test - Mayo Clinic

    Jan 29, 2025 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is just one of many …

  6. 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. Heart …

  7. Frecuencia cardíaca: ¿cuál es la normal? - Mayo Clinic

    Dec 18, 2025 · Una frecuencia cardíaca en reposo normal para los adultos oscila entre 60 y 100 latidos por minuto. Tu frecuencia cardíaca en reposo es la cantidad de veces que tu corazón late cada …

  8. Atrial fibrillation - Symptoms and causes - Mayo Clinic

    Jan 14, 2026 · Permanent. The irregular heart rhythm can't be reset. Medicines are needed to control the heart rate and to prevent blood clots. When to see a doctor If you have symptoms of atrial …

  9. 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 which takes into …

  10. Low blood pressure (hypotension) - Symptoms and causes

    Jun 13, 2024 · Heart and heart valve conditions. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure. Hormone-related diseases, also …