“Do not think, just go by your gut feeling”; “Having butterflies in my stomach”; “I was scared shitless”; “Do you have the guts to do it?” are popular English phrases in common usage exhibiting a metaphorical link to the gastro-intestinal system. Most of these phrases relate to a basic and fundamental character of human intuition and instinct – responses that are not generally considered to be related to the digestive system. Intuitive responses, though considered illogical and not well-thought ...
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