What is the problem with newborns not sleeping?

Newborn does not sleep, consider the baby may be showing physical discomfort. For example, respiratory tract infection, digestive tract infection and other symptoms, this time the baby will show not good sleep. In view of this situation, need to give the baby treatment of primary disease. After the primary disease improves, sleep will naturally improve. In addition, consider the newborn may be calcium deficiency, usually give the baby more sun, can promote calcium absorption.