how do hicoughs happen?!
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Hiccups are caused by a sudden jerk in your diaphragm that causes you to breathe in air very quickly. When you breathe in, the air travels in your mouth and nose, through your windpipe and into your lungs. When your diaphragm jerks and you suck in air very quickly, the quick air flow causes the flap at the top of your windpipe to snap shut. This quick inflow of air and the snapping shut of the flap on your windpipe is the sound of hiccups. Your brain sends a message down to your diaphragm telling it to contract. But, we really do not know why the brain sends this message.
Other Answers:
good question, but cant be answered it is truley unkown athought beleived to be cuased by muscle spasums in the diaphram
its accually to much air in the lungs and hiccups is how it comes out.
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