Question
A newborn at 45 days old has unstable sleep, waking up after 20 minutes, and starts crying at midnight, lasting for two hours, and cannot be soothed.
Answer
Considering the possibility of the baby lacking trace elements, it is suggested to administer some calcium tablets and vitamin D capsules for adjustment, while also paying attention to increasing sun exposure time. If the problem persists, it is recommended to visit a pediatrician for a detailed examination and trace element testing.