Frequent shaking of the body during sleep is more common in the clinic, and can usually be divided into functional and pathological causes, as follows: 1, functional factors: mainly related to excessive emotional excitement, anxiety or taking coffee or strong tea during the day. Patients may show irregular shaking or single shaking, while the shaking phenomenon will disappear as sleep deepens, and such cases can also be seen in children with incomplete neurological development; 2. Pathological factors: such as restless legs syndrome, patients will have more regular shaking or twitching. Patients with epilepsy may have symptoms that cause convulsions due to low calcium. Some children may also have convulsive symptoms due to hyperthermia.