Lying on your back is suitable for most people, and most people will choose this sleeping position, because it will not oppress the heart or lungs, which is more conducive to the normal operation of our body functions, and the detoxification at night will not be affected, but the disadvantage is that people with rhinitis or frequent nasal congestion are more difficult to breathe.
Few people lie on their left side, or are driven by their subconscious body functions. People lie flat after waking up, because lying on the left side will oppress the heart, and your heart is on the left side. Most people will hear the sound of heartbeat when lying on their side, which is a normal performance.
Lying on the right side, in fact, many people will choose, because they lie on their side before going to bed, and many people do, and so do I, so the advantage of lying on the right side is that it will not oppress the heart and affect normal blood circulation, but it will affect normal breathing. After maintaining this for a period of time, we will feel that our breathing seems to be not so smooth, and subconsciously drive us to turn over to the right or lie flat.
Of course, there are some very rare people who choose to sleep on their stomachs. Such people are rare. Perhaps it can be said that there are only three or five people out of 100. These people are basically sleeping habits formed when they are young or have poor spines. It's more comfortable to sleep like this.