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How does the human heart function and how much blood does it pump daily?
Updated: 11-Apr-2025

The heart is a muscular organ that pumps blood throughout the body, delivering oxygen and nutrients to cells. It has four chambers: two atria and two ventricles. The right side pumps oxygen-poor blood to the lungs, while the left side pumps oxygen-rich blood to the rest of the body.

On average, the heart beats about 100,000 times a day, pumping roughly 7,500 liters of blood daily. It adjusts its rate based on physical activity, emotions, and health conditions. A healthy heart is essential for life, and lifestyle choices significantly impact heart health and longevity.

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