LYCOS RETRIEVER 
Heartburn: Stomach
built 644 days ago
Heartburn can be triggered by many things — something you eat or drink, another medical condition, or lifestyle habits. Triggers can contribute to heartburn by doing one of several things: relaxing the LES (lower esophageal sphincter), increasing acid production, increasing pressure on the stomach (forcing acid upward), or making the esophagus more sensitive to acid. Possible triggers include:
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Heartburn is more likely to occur if you have a hiatal hernia, which is when the top part of the stomach protrudes upward into the chest cavity. This weakens the LES and makes it easier for acid to reflux from the stomach into the esophagus.
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Heartburn occurs when there is an abnormal backflow of stomach juices into the esophagus, the tube that leads from the mouth to the stomach. The backflow or reflux causes a feeling of burning, warmth,...
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Stomach