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.

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 beat too fast …

Dec 13, 2024 · Symptoms A slower than typical heartbeat is called bradycardia. If the slow heartbeat stops the brain and other organs from getting enough oxygen, symptoms may include: Chest pain. …

Mar 11, 2022 · Too much or too little thyroid hormone Occasionally heart palpitations can be a sign of a serious problem, such as an irregular heart rhythm (arrhythmia). Arrhythmias might cause a very fast …

Dec 15, 2023 · Jeff Olsen: This is a normal heartbeat. [HEART BEATING] Atrial fibrillation interrupts this regular beat. Fred Kusumoto, M.D., Cardiology, Mayo Clinic: In atrial fibrillation, instead of the atria …

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 …

Jan 29, 2025 · The term "ejection fraction" is the amount of blood — as a percentage — that's pumped out of a filled ventricle with each heartbeat. The ejection fraction is usually measured only in the left …

Oct 13, 2023 · Heart arrhythmia treatment is usually only needed if the irregular heartbeat causes significant symptoms or puts you at risk of more-serious heart problems. Treatment for heart …

Sep 20, 2025 · Premature ventricular contractions (PVCs) may not cause symptoms. Sometimes the extra beats can cause unusual feelings in the chest, such as: Fluttering, pounding or jumping …

Oct 3, 2025 · Atrial fibrillation. 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 hea