The largest cell in the human body is the female egg and the smallest is the male sperm.
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During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
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"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Only 1 person in 2 billion will live to be 116.
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