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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. High blood pressure (hypertension) - Symptoms & causes - Mayo …

    Feb 29, 2024 · High blood pressure is a common condition that affects the body's arteries. It's also called hypertension. If you have high blood pressure, the force of the blood pushing …

  3. 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 …

  4. 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.

  5. 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 …

  6. Low blood oxygen (hypoxemia) When to see a doctor - Mayo Clinic

    Sep 30, 2005 · Learn causes of low blood oxygen and find out when to call your doctor.

  7. Heart arrhythmia - Symptoms and causes - Mayo Clinic

    Oct 13, 2023 · Soon the person's breathing and pulse will stop. Ventricular fibrillation is an emergency that needs immediate medical help. It's the most frequent cause of sudden cardiac …

  8. Peripheral artery disease (PAD) - Symptoms and causes

    Aug 9, 2024 · Peripheral artery disease is usually a sign of a buildup of fatty deposits in the arteries, a condition called atherosclerosis. Treatment for PAD includes exercising, eating …

  9. Ankle-brachial index - Mayo Clinic

    The ankle-brachial index test compares the blood pressure in the ankle with the blood pressure in the arm. A low ankle-brachial index number can mean there is narrowing or blockage of the …

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

    Jun 13, 2024 · Rapid, shallow breathing. Weak and rapid pulse. When to see a doctor If you have symptoms of extreme low blood pressure or shock, call 911 or your local emergency number. …