What are Hiccups?
Hiccups are repetitive, uncontrollable contractions of the diaphragm, the muscle structure just below your lungs.
The diaphragm marks the boundary between your chest and abdomen, and it also regulates breathing. When your diaphragm contracts, your lungs take in oxygen. When your diaphragm relaxes, your lungs release carbon dioxide.
The diaphragm contracting out of rhythm is what causes hiccups. Each spasm of the diaphragm makes the larynx (voice box) and vocal cords close suddenly. This results in a sudden rush of air into the lungs. Your body reacts with a gasp or chirp, creating the sound characteristic of hiccups.
What Causes Hiccups?
Numerous causes of hiccups have been identified. However, there’s no definitive list of triggers. Hiccups often come and go for no apparent reason.
Common causes of short-term hiccups may include:
- overeating
- eating spicy food
- Consuming Alcohol
- drinking carbonated beverages, like sodas
- consuming very hot or very cold foods
- a sudden change in air temperature
- swallowing too much air (aerophagia)
- swallowing air while chewing gum
- excitement or emotional stress
There are several factors that can increase your likelihood of developing hiccups. You may be more susceptible if you:
- are male
- experience intense mental or emotional responses, ranging from anxiety to excitement
- have had surgery, especially abdominal surgery
- have received general anesthesia