Why Do Newborns Suddenly Cry in Their Sleep?

Newborns may suddenly cry in their sleep due to various reasons, including but not limited to hunger, the need to change diapers, feeling too cold or too hot, or a lack of security. After excluding these basic needs, if a newborn continues to cry during sleep for a long time, it may be a sign of calcium deficiency. It is recommended to supplement calcium under the guidance of a doctor.
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