Question
A one-month-old baby often tosses and cries during nighttime sleep. How should this be handled?
Answer
Full-term newborns should start taking a daily vitamin D supplement of 400 units 15 days after birth to promote calcium absorption. If supplements are not taken regularly, it may lead to calcium deficiency, manifested as excessive sweating, restless sleep, easy waking, and hair loss at the nape of the neck. If these symptoms occur, it is important to timely visit a hospital for trace element testing to determine if there is a calcium deficiency and its severity. If diagnosed with calcium deficiency, treatment with calcium supplementation is necessary.