Acid reflux, also known as gastroesophageal reflux disease (GERD), occurs when stomach acid flows back into the esophagus. Sleeping position can influence the severity of acid reflux symptoms, and sleeping on the left side is generally considered better for preventing reflux compared to other positions.
When you sleep on your left side, several anatomical and physiological factors come into play:
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Anatomical Orientation: The stomach is positioned on the left side of the body, with the esophagus entering the stomach on the right side. By sleeping on the left, gravity may help keep stomach contents, including acid, from flowing back into the esophagus.
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Lower Esophageal Sphincter (LES): The LES is a muscle that acts as a valve between the esophagus and the stomach. When you lie on your left side, the angle of the esophagus relative to the stomach may help keep the LES more tightly closed, reducing the likelihood of acid reflux.
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Reduced Gastric Pressure: Left-side sleeping can also minimize pressure on the stomach and lower esophageal area, which can help decrease the chances of acid moving up into the esophagus.
While sleeping on the left side is generally considered more beneficial for those with acid reflux, it's important to note that individual experiences can vary. Some people may still experience symptoms despite this position, and factors such as diet, body weight, and overall health can also play significant roles. If acid reflux is a persistent issue, it’s advisable to consult a healthcare professional for tailored advice and treatment options.