Sudden sexual death can be caused by over-excitement in people who themselves suffer from cardiovascular disease. In addition, there is also a certain relationship with physical weakness, alcohol consumption, and pressure on the neck during coitus. 1. Generally in the process of coitus the body is in a state of exuberance, which leads to a high degree of central nervous system excitation, if they are suffering from cardiovascular and cerebrovascular diseases, it is easy to appear vascular spasm, blood pressure rise phenomenon, which induced acute myocardial infarction or cerebral hemorrhage leading to sudden death. 2. If the physical quality is poor, and in the process of coitus is not restrained, often overindulge in sex, it is easy to sudden sexual death. 3. Generally after drinking alcohol, intercourse will aggravate the stimulation of the cardiovascular system, because alcohol will make the central nervous system excited, resulting in faster blood circulation, thus affecting the heart function, serious cardiac arrest phenomenon may lead to sudden death. 4. If you do not pay attention to the safety of cohabitation, embracing each other on the outside of the neck may lead to carotid sinus pressure, resulting in lower blood pressure, heart rate slows down the phenomenon, which can lead to severe reflex cardiac arrest, sudden sexual death. Therefore, we must ensure that the physical strength of the same room, to avoid excessively intense action, to control the number of times the same room.