why do we have hiccups
Why do we hiccup? Hiccups (also spelled hiccough) are sudden, involuntary contractions (spasms) of the diaphragm muscle. When the muscle spasms, the vocal cords snap shut, producing the hiccup sound.
Sometimes hiccups will occur because of a disturbance to the nerve pathways from the brain to the muscles involved. This explains why hiccups may occur with temperature changes or emotional situations. It is also the reason that a sudden shock can sometimes abolish an attack.