Why do our stomach churn perhaps also called heart in mouth(?!) in an unprecedented event?

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As I was driving yesterday, I had a pedestrian walk in front of me, out of nowhere. Thankfully, was within the speed limit and was able to reach and brake on time. No harm done.
Except..
When I first saw him , as it is said..’my heart stopped’ but not really, what I felt was this big compression in my stomach and as things went okay…it was over..all in less than a second..
Why do we feel it in stomach when there is a sudden event…what is called , why does it happen.

Thanks

In: Biology

Anonymous 0 Comments

This is called an adrenaline rush. Adrenaline is released when you are in trouble; it numbs pain and makes you more able to exert yourself. The feeling you get in your stomach is from your body diverting blood away from your digestive system and into your legs – it’s an evolutionary response; usually in situations like this we would have had to run away and having more blood flow to our muscles would have aided us in that.