The heart is a complex organ that pumps blood throughout the body. It sits in the chest, slightly left of center, behind the breastbone, and between the lungs. A heart that is not healthy does not ...
Highly active people, particularly endurance athletes, often have lower resting heart rates than others, below 60 beats per minute. This is because aerobic exercise strengthens the heart, allowing it ...
An abnormal heart rhythm, also known as an arrhythmia, occurs when the heart beats too fast, too slow, or irregularly, which can be caused by various factors affecting the heart’s complex system.
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