Sudden cold shivering while sleeping at night may be related to physiological factors, or it may be caused by cold and fever, hypoglycemia and other reasons.
1. Physiological factors: for example, the environment in which you sleep at night is too cold, and if you are stimulated by cold for a long time, you may show sudden cold shivering. Or anxiety during sleep, mental tension, blood vessel constriction, resulting in cold shivering.
2. Cold and fever: fever symptoms occur at night due to cold and flu, when the body temperature rises sharply, it may cause chills, which may show sudden cold shivering while sleeping at night, and may be accompanied by cough, nasal congestion and other symptoms.
3. Hypoglycemia: common in people with frequent hypoglycemic reaction, when sleeping at night if the hypoglycemic reaction, resulting in the whole body tissues do not get enough energy supply, causing insufficient blood supply to the brain. Coupled with the slow blood flow rate at night, resulting in insufficient blood supply to the extremities, it may cause sudden cold shivering.
Sudden cold shivering while sleeping at night, after excluding physiological factors, should seek medical treatment as soon as possible to give targeted treatment.