3 Scientific Body Facts

3 scientific facts about your body you probably didn't know. Fact one:

Your brain can't feel pain because it has no pain receptors. That is why

brain surgery can be done while patients are awake. Fact two: Your body actually

produces light through chemical reactions in your cells. But it is way too weak

for human eyes to see. Fact three: Your gut has its own nervous

system with millions of neurons. That is why it directly affects your mood.

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