This question reminds me of one day in grade 7. In response to the teacher’s question, my friend had said that “heartburn refers to burning of the heart for religious rituals”. Well whether that was true or not, we were in a science class and that had nothing to do with spiritualism.
In actual terms, heartburn has nothing to do with the heart as my friend had thought.It refers to an uncomfortable peppery burning sensation in the middle of the chest or beneath the breastbone. This occurs when the stomach acid finds its way into the oesophagus.
The oesophagus has a natural defence mechanism which protects it against invaders from the stomach. Beneath it is a muscular valve called the oesophageal sphincter. This valve allows food and substances from the oesophagus into stomach whilst preventing movement of contents in the stomach into the oesophagus. The normaltime it opens up is for water or food passage and the occasional belching. However, any distortion that makes it open regularly or makes it unable to be tightly closed may cause the penetration of stomach acid through it, thereby, causing an irritation in the oesophagus.
WHAT IS HEARTBURN CAUSED BY?
Some of the causes of the malfunctioning of the oesophageal sphincter are; intake of too much food, smoking habit, excessive alcoholism, belly fat and some medical problems as well as a medicinal side effects.
It is normal for people to experience this every once in a while. It is also commonly experienced by pregnant women. However, if it becomes a regular, persistent or chronic issue, all might not be safe. My advice is for you to see a doctor for treatment.