That isn't butterflies in your stomach, it's your second brain. There are more neurons lining your gut than there are in your spinal cord, so your digestive system can work without needing your brain.
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Bizzare facts about the human body...
Non-FictionJust cause I like googling this shit at 2 in the morning.
Fact Three
That isn't butterflies in your stomach, it's your second brain. There are more neurons lining your gut than there are in your spinal cord, so your digestive system can work without needing your brain.