Heart rate: What's normal? - Mayo Clinic
Oct 8, 2022 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.
What is a normal heart rate/pulse? - Drugs.com
A normal heart rate range is 60 to 100 beats per minute. Your heart rate is a measure of how many times your heart beats per minute. It is also called your pulse. Heart rates vary from one person to another, depending on their age, body size, heart condition, medication use, and presence of other medical conditions.
Pacemaker - Mayo Clinic
Jul 8, 2023 · The heart's electrical system typically controls the heartbeat. Electrical signals, called impulses, move through the heart chambers. They tell the heart when to beat. Changes in heart signaling may happen if the heart muscle is damaged. Heart signaling problems also may be caused by changes in genes before birth or by using certain medicines.
Heart palpitations - Symptoms & causes - Mayo Clinic
Mar 11, 2022 · If the heart beats rapidly, blood pressure can drop, causing the person to faint. This is more likely in those with a heart problem, such as congenital heart disease or certain valve problems. Cardiac arrest. Rarely, palpitations can be caused by life-threatening heartbeat problems and can cause the heart to stop beating effectively. Stroke.
Heart conditions and pregnancy: Know the risks - Mayo Clinic
Aug 10, 2023 · Congestive heart failure. With heart failure, the heart doesn't pump blood as well as it should. As blood volume and stress on the heart rise during pregnancy, congestive heart failure can become worse. Congenital heart defect. If you were born with a heart problem, your baby has a greater risk of getting some type of heart defect too.
Frecuencia cardíaca: ¿cuál es la normal? - Mayo Clinic
Oct 8, 2022 · Una frecuencia cardíaca en reposo normal para los adultos oscila entre 60 y 100 latidos por minuto. Generalmente, una frecuencia cardíaca más baja en reposo implica una función cardíaca más eficiente y un mejor estado físico cardiovascular.
How fit are you? See how you measure up - Mayo Clinic
Jan 18, 2024 · The target heart rate zone is a heart rate range that gives your heart and lungs a good workout. This zone ranges from 50% to 85% of the maximum heart rate (MHR) for your age. Aim for 50% to 70% of MHR when you do moderately intense activities and 70% to 85% of MHR when you do vigorous activities.
Ejection fraction: An important heart test - Mayo Clinic
Feb 17, 2023 · The heart contracts and relaxes. When the heart contracts, it pumps out — ejects — blood from the two lower heart chambers, called ventricles. When the heart relaxes, the ventricles refill with blood. No matter how forceful the contraction, the heart can never pump all the blood out of a ventricle.
Tachycardia - Symptoms and causes - Mayo Clinic
Dec 15, 2023 · Tachycardia is an increased heart rate for any reason. If a fast heart rate is caused by exercise or stress, it's called sinus tachycardia. Sinus tachycardia is a symptom, not a condition. Most heart conditions can lead to different forms of tachycardia. Irregular heart rhythms, called arrhythmias, are one cause.
Heart arrhythmia - Symptoms and causes - Mayo Clinic
Oct 13, 2023 · A heart-healthy lifestyle can help prevent heart damage that can trigger some heart arrhythmias. Types. In general, heart arrhythmias are grouped by the speed of the heart rate. For example: Tachycardia (tak-ih-KAHR-dee-uh) is a fast heartbeat. The heart rate is greater than 100 beats a minute. Bradycardia (brad-e-KAHR-dee-uh) is a slow heartbeat.