Thump, thump. The pounding rhythm is synonymous with the beat of life itself - the sound of a person's heartbeat. This remarkable organ is a marvel of nature, working nonstop day after day, month ...
The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...
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