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Many people wake up from their sleep and feel dizzy, backache and exhausted. The reason is mainly caused by improper sleeping posture.
Lying on your back is the most common sleeping position. In Chinese medicine, this sleeping position is called corpse lying. This kind of sleeping position can only fix the body and lower limbs in a straight position, and can't achieve the purpose of whole body rest.
When the pressure in the abdominal cavity increases, lying on your back can easily make people feel chest tightness and panic. Lying on your back like this, you will consciously or unconsciously put your hand on your chest, which will put pressure on your heart and lungs and make you prone to nightmares.
When lying prone, most of the weight of the whole body is pressed on the ribs and abdomen, which makes the chest and diaphragm compressed, affecting breathing and aggravating the heart load.