Question

why does we have hiccups

Answer 1

The muscles we use when we take in a breath are the intercostal muscles situated between the ribs, and the diaphragm - a sheet of muscle below the lungs. Most simple cases ofhiccups come after eating or drinking too much or too quickly. ... This will cause the diaphragm to contract, as it does when we breathe 

Answer 2

Hey buddy, Here is your answer.

When the air rushing in hits your voice box, your vocal cords close suddenly and you're left with a big hiccup. Some things that irritate the diaphragm are eating too quickly or too much, an irritation in the stomach or the throat, or feeling nervous or excited. Almost all cases of the hiccups last only a few minutes.