Your heart beats around 100,000 times a day, pumping about 2,000 gallons of blood through 60,000 miles of blood vessels. It has its own electrical system that regulates its rhythm, with the sinoatrial (SA) node acting as the natural pacemaker. The heart doesn’t tire like other muscles; it keeps going for your entire life! Interestingly, the heart can be influenced by emotions—when you're nervous or excited, your heart rate changes. Plus, it can even “remember” past injuries and adjust to avoid further damage!

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