Hiccups are caused by involuntary spasms of the diaphragm, the muscle below the lungs that aids in breathing, which leads to a quick closure of the vocal cords, producing the characteristic "hic" sound.
Common Causes of Hiccups
Hiccups can result from both physical and emotional triggers, including:
- Eating or drinking too quickly or in excess.
- Consumption of carbonated beverages and alcohol.
- Emotional stress, excitement, or sudden temperature changes.
- Swallowing air from chewing gum, smoking, or laughing.
- Certain medications, such as anesthetics, corticosteroids, and chemotherapy drugs, can also induce hiccups.
Less Common Causes
Persistent or long-lasting hiccups might be related to underlying health issues including nerve irritation, central nervous system disorders, metabolic imbalances, or side effects of specific drugs.
In summary, hiccups often happen due to irritation or stimulation of nerves controlling the diaphragm, most commonly from lifestyle factors and emotional states, but they can also signal underlying health problems when they become chronic.