I’m convinced it’s all BS. The best thing for the human body, in nearly every field, is variety. Sleep however you want, mix it up, whatever. Your comfort is the best indicator. And the consequences of a bad sleeping position are rarely so dire.
My understanding is, your stomach is slightly to one side (a bit like your heart is; you’re only symmetrical on the outside) and so laying on one side, your stomach is above your centerline, if you lay on the other your stomach is below your centerline. Sleeping with your stomach on the “high side” means its easier for stomach acid to leak up into your esophagus, which burns!
Oh, I naturally have to sleep on my side, as front and back are both uncomfortable (for back my ass is a bit too big to not make my lower back feel odd). I sometimes have issues with digestion/acid reflux, so maybe I instinctively sleep left side? I noticed I kept going left instead of right.
Add comment