Newborn babies being startled while sleeping is a phenomenon that worries many parents because poor sleep quality will affect the physical and intellectual development of the baby. To thoroughly solve this problem, parents need to determine the cause and have an appropriate treatment.

Many young children have signs of being startled and crying while sleeping. The phenomenon of children being startled and having trouble sleeping can come from unusual causes and affect the child's health.

The phenomenon of newborns twisting and turning while sleeping is usually a normal physiological condition if the baby only twists, tenses, and blushes for a few minutes and then stops on its own. This phenomenon often occurs in babies from 5 to 6 weeks old, and can also occur earlier when the baby is 2 to 3 weeks old. This can be said to be a normal physiological phenomenon, and the baby will stop when he or she is over 4 months old.

Moro reflex (startle reflex): This reflex usually occurs when a baby is startled by a loud sound or sudden movement. In response to the sound, the baby may extend his arms and legs away from his body and cry, but then immediately pull his arms back as if hugging himself. Sometimes the baby's own crying can startle the baby and initiate this reflex.