Here’s why you are getting those persistent hiccups

                  
There is nothing quite as annoying and embarrassing as hiccups especially when they go on for a long period of time. Hiccups are basically involuntary contractions of the diaphragm muscles. According to emedicinehealth, 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.

Studies are yet to fully provide the causes of hiccups. However, ENT specialists have their own theories as the cause and as one can imagine, the list goes on and on.