Heart Rhythm
Heart rhythm is the organized pattern of electrical impulses that regulate the heart's contractions, ensuring blood circulates effectively through the body. In contemporary health contexts, it's a key indicator of cardiovascular health, with irregularities often signaling conditions like arrhythmias that require immediate medical attention.
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The human heart typically maintains a rhythm of 60-100 beats per minute at rest, but in elite athletes, it can drop to as low as 30 beats per minute due to enhanced cardiovascular efficiency, allowing them to perform at peak levels without fatigue. This adaptation, known as bradycardia, was first documented in Olympic rowers in the early 20th century, showcasing how the body fine-tunes heart rhythm for extreme demands.
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