The average human heart beats 3 billion times over the course of a lifetime.
Fact #4618
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More Human Body Facts
The Earth is about 4.5 billion years old.
Fact #172 · Human Body
Many insects have exoskeletons that protect them from dehydration.
Fact #876 · Human Body
The Earth completes one full rotation approximately every 24 hours.
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Some insects have compound eyes made of many lenses.
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Smiling can influence mood through feedback to the brain.
Fact #951 · Human Body
The Eiffel Tower was once the tallest man-made structure on Earth.
Fact #1518 · Human Body
A polar bear’s fur traps heat efficiently.
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In 1920, a town in Minnesota briefly elected a bear as mayor in a publicity stunt.
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