Different sleeping positions—such as on your back, stomach, left side, or right side—can impact:
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Blood circulation
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Breathing patterns
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Digestive comfort
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Spinal alignment
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Heart workload
Because the body’s internal organs are not perfectly symmetrical, sleeping on one side versus the other can produce slightly different effects.
The Impact on Your Digestive System
One of the areas most influenced by sleep position is digestion. After meals, your body continues processing food for several hours. The direction you lie in can affect how stomach contents move.
When sleeping on the right side, gravity may influence the stomach’s position relative to the esophagus. For some individuals, this can make it slightly easier for stomach acid to move upward, which may increase the likelihood of nighttime acid reflux.
