to how blood flows around the heart.
However, the left side may be preferable if you experience nighttime acid reflux (GERD), as it can help keep stomach acid from rising into the esophagus.
For pregnant individuals, left-side sleeping is often recommended to support optimal blood flow to the baby and reduce pressure on major blood vessels.
So: there’s no universal “best” side. The best position is the one that keeps your airway open, supports your comfort, and helps you rest well.
WHY SLEEP POSITION AFFECTS SNORING (THE SIMPLE SCIENCE)
When