Around 50-75 trillion cells make up the human body with around half being red blood cells. A red blood cell takes only about 20 seconds to make a complete circuit through your body.

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Around 50-75 trillion cells make up the human body with around half being red blood cells. A red blood cell takes only about 20 seconds to make a complete circuit through your body. - Did You Know?

Did You Know?

Around 50-75 trillion cells make up the human body with around half being red blood cells. A red blood cell takes only about 20 seconds to make a complete circuit through your body.