Your body replaces cells constantly.
Fact #2365
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The average person produces about 1–2 liters of saliva per day.
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Your brain processes reality.
Fact #2399 · Human Body
Red blood cells complete a full circuit of the body in about 20 seconds.
Fact #3272 · Human Body
The human brain is optimized for pattern recognition.
Fact #2999 · Human Body
Stomach acid is strong enough to dissolve razor blades.
Fact #3267 · Human Body
Your brain can store the equivalent of millions of gigabytes of information.
Fact #2093 · Human Body
There are people alive today whose hearts have stopped for hours and were restarted.
Fact #2226 · Human Body
You are slightly taller when you wake up than when you go to sleep.
Fact #2713 · Human Body
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