Sleeping paralysis, commonly known as “ghost pressed body” and “ghost pressed bed”, is a sleep-related disease. Patients can feel their surroundings clearly, but their bodies do not obey them, they cannot move, they cannot speak, they cannot open their eyes even if they want to, and sometimes they may have corresponding dreams or even hallucinations. The family type is more common in women than in men, but most of them are epidemic and there is no gender difference. The sleep cycle goes from sleep onset, to light sleep, to deep sleep, and finally to the “rapid eye movement phase” (dreaming phase). Sleep paralysis is mainly related to the early onset of the REM phase, resulting in inconsistent coordination of the REM phases. In fact, during the REM phase, the body is essentially resting and the connection with the brain is temporarily interrupted as a defense so that the body does not realize the dream in real life. When the sleep nerve is paralyzed, the brain recovers from sleep rest and is too late to reconnect with the body, resulting in a half-asleep, half-awake state, where dreams and realizations intersect, causing the body and brain to become uncoordinated. At this time, the muscle tension of the whole body is at its lowest, so it will cause the situation that you want to get up but can’t; you want to exert yourself but can’t do so. Generally speaking, if you are stressed, too anxious, nervous, extremely tired, insomniac, sleep deprived, or have jet lag, your sleep will enter the REM phase (dreaming phase) early and sleep paralysis will occur. There is no special treatment for sleep paralysis, and witnesses should immediately push the patient awake during an attack to end the attack. The key to prevention is to pay attention to the regulation of one’s own life: first, to maintain a good psychological state, with stress or negative emotions, to find a suitable way to vent; second, to work and rest on time, to ensure sufficient sleep, to ensure full energy; third, to pay attention to the sleep environment, often change the sleeping position or choose the appropriate lying furniture, to improve the quality of sleep.