Your gut is the only organ with its own independent nervous system.
Your veins, capillaries and arteries would stretch for more than 60,000 miles if laid out flat.
You lose 200 million skin cells every hour, and these dead skin cells can actually decrease air pollution.
Your cornea is unique in that it has no blood vessels.
Bacteria in your gut can influence your mood.
Your heart rate and breathing can sync up to the music you're listening to.
Your brain shrinks during pregnancy.
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