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How your resting heart rate could flag a looming cardiac event – and how to check itA heart rate that is too high, often over 100 beats per minute, is known as tachycardia, a condition that is not necessarily ...
Your heart beats about 100,000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times. Give a tennis ball a good ...
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