Adults who experience a startle while sleeping are usually caused by overwork during the day, mental stimulation during the day or before going to bed at night. Most people usually cannot recall the performance during seizures, which is a normal physiological phenomenon and does not need to be treated. Pay attention to rest and adjust your state of mind. In addition, it may also be related to calcium deficiency as well as epilepsy and other conditions: 1. Calcium deficiency: When there is significant calcium loss, or when there is no timely calcium supplementation due to various reasons, the person will be in a state of long-term hypocalcemia. At night when sleeping, obvious muscle tension spasms and even convulsions may occur, that is, a state of shock and surprise. When such a situation occurs, it is recommended to treat it by calcium supplementation; 2. Epilepsy: some epilepsy patients will develop during sleep, thus appearing to sleep with a startle. Patients are advised to go to the hospital in time to consult their doctor and choose the appropriate medication for medication. In addition, hypoglycemia and electrolyte disorders may also cause the symptoms of a startle during sleep. If the symptoms occur occasionally when sleeping with a startle, do not be too concerned, relax and pay attention to rest, but if this symptom occurs for a long time when sleeping, you should go to the hospital in time to do the relevant examination to clarify the cause and treat the symptoms.