Therefore, there are no special rules about what is the correct sleeping position. You can lie on your back, side or stomach, mainly for your own comfort, and your sleeping posture is constantly changing at night. But when you sleep, you must pay attention to the physiological curvature of the spine, especially the cervical spine (the cervical spine is backward-driven, and the spine is not sideways): 1, sleep on your back, put the pillow high on your neck, enrich your neck, and lower the pillow slightly to ensure the curvature of the cervical spine. 2. Sleep on your side with your pillow shoulder-high to ensure that your spine is not scoliosis. 3, prone position, no special requirements.
By the way, fat people had better sleep on their backs. If the fat man sleeps on his side, the whole weight is on his arm, so he won't sleep for long. The fat man sleeps on his back, his huge body is scattered on his broad back, and the oppression of each part is light. Plus, fat people sleep more dead, so they sleep longer. Thin people can sleep in any position except the left, because the most important organ in the whole body is on the left, and the most important organ can't be oppressed, especially the bigger and heavier people. Therefore, we should choose a relatively comfortable oppression posture.