The correct sleeping position should be to the right side, slightly curved legs, the heart is in a high position is not compressed, the right side of the bed can allow more oxygen into the body, the liver is in a low position, the blood supply is better for metabolism. If you take the left side lying position, it is easy to compress the heart, resulting in symptoms of breathing breathing difficulties. People can generally be divided into four sleeping positions, the choice of sleeping position, but also according to the person. The side-lying position tends to make people toss and turn in their sleep, producing an unstable sleep. Supine position is also a common sleep position, does not compress any organs of the body, but it is easy to cause the root of the tongue to droop and hinder breathing. Prone position using this sleep position is often sleep will feel safe, help the discharge of foreign bodies in the mouth, the lumbar spine has the benefit of patients with diseases, but most of the body weight pressed on the ribs and abdomen, so that the chest and diaphragm is under pressure, will affect breathing and increase the load on the heart.