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The Standard Group Plc is a
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A pulse oximeter, a small, clip-like device that measures the percentage of haemoglobin in the blood. [Courtesy]
A normal resting human heart beats 60-100 times a minute, pumping about 7,000 liters of blood every day. If your blood vessels were to be laid out end to end, the blood your heart pumps could travel about 60,000 miles through them.
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