Sleeping on your stomach is generally feel their heartbeat, do not worry too much, but need to adjust the sleeping position, so as not to adversely affect the body. Sleeping on your back, the human heart, lungs may be compressed, prone to hypoxia, which causes sympathetic nerve excitation. As lying on the bed presses the blood vessels, chest down, ears close to the pillow, so that the heartbeat sound can be transmitted to the ear through the pillow, so it is possible to feel their heartbeat. But long-term sleep on the stomach will lead to discomfort in various parts of the body, may compress the heart, affect spinal development and cause blood supply problems, may also cause stomach distension, affect digestion and pressure to the eyeballs, so that the eyes are prone to congestion. In daily life, it is recommended to avoid sleeping on your stomach, if you already have this habit, it is recommended to correct it in time, if there are symptoms of discomfort, you need to consult a doctor in time for further examination.