What exactly is a hiccup?

Baby Paxx, Sometimes, in this forum, there is a question for which there is no definitive answer, and your question is one of those! It is known what hiccups is, and how it affects people, but the cause(s) are many and different. Sudden and involuntary contractions of the diaphragm muscle is the technical description of hiccups. Also, as the muscle contracts repeatedly, the opening between the vocal cords snaps shut to check the inflow of air and makes the hiccup sound. Irritation of the nerves that extend from the neck to the chest can also cause hiccups. Although associated with a variety of ailments (some serious causes such as pneumonia or when harmful substances build up in the blood for example from kidney failure are known to induce hiccups). However, hiccups, per se, are not serious and have no clear reason for occurring. ALL ANSWERS SHOULD BE THOROUGHLY RESEARCHED, IN ANY FORUM AND ESPECIALLY IN THIS ONE. - MANY ANSWERS ARE FLAWED. It is extremely important to obtain an accurate diagnosis before trying to find a cure. Many diseases and conditions share common symptoms. The information provided here should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. I add a link with some details of this subject http://www.healthscout.com/ ency/68/296/main.html Hope this helps matador 89