Newborn babies are afraid of cold. Newborns have immature thermoregulatory centers, and their ability to increase heat production and decrease heat dissipation is relatively poor, so when the external environment decreases, body temperature can easily decrease. In addition, the newborn’s body surface area is relatively large, subcutaneous fat is relatively small, especially the brown fat is relatively small, and its own stored heat is also relatively small. Therefore, when cold occurs, the compensatory capacity is poor and cold injury syndrome, also known as neonatal sclerosis, can easily occur. So adequate warmth is necessary for newborns, but not to be overly warm. Because of the immaturity of the thermoregulatory center of the newborn, if the child is overdressed or overwrapped, there is a risk of neonatal muffled fever syndrome. When the wrapping is too thick or too much, the child’s body temperature will rise, reaching 38-39 degrees, and some may have convulsions. So the newborn’s body temperature should be within a more constant normal range is more appropriate.