Why does eating hot pepper cause hiccups?

There is no direct link between eating hot peppers and hiccups. Hiccups are involuntary spasms of the diaphragm muscle that separate the chest cavity from the abdomen. It's typically caused by irritation of the phrenic nerve. Some causes or triggers for hiccups can include:

1. Eating or drinking too quickly.

2. Drinking carbonated beverages.

3. Sudden temperature changes.

4. Acid reflux.

5. Tobacco smoking.

6. Alcohol consumption.

7. Emotional reactions: such as excitement, laughing, or nervousness.

Hiccups may also be associated with underlying medical conditions or diseases that irritate the phrenic nerve or diaphragm. Therefore, it's more likely these factors would contribute to hiccups rather than directly due to eating spicy food peppers.