happoemäystilan
Happoemäystila, also known as acid reflux or heartburn, is a common medical condition characterized by a burning sensation in the chest, often after eating or at night. It occurs when stomach acid flows back up into the esophagus, the tube that connects the throat to the stomach. The esophagus has a sphincter at its lower end, called the lower esophageal sphincter (LES), which normally opens to allow food into the stomach and then closes to prevent stomach contents from returning. In cases of happoemäystila, this sphincter may relax abnormally or become weakened, allowing acid to reflux.
Symptoms can vary in intensity and frequency. The most characteristic symptom is a burning pain in the
Several factors can contribute to the development of happoemäystila. These include dietary choices such as consuming
While occasional heartburn is common, persistent or severe symptoms may indicate a more serious condition called