For the newborn baby, if the surrounding environment is cooler and more open, it is best to wear a hat, because the younger the age of the head occupies a relatively large body surface area, and the newborn baby needs to ensure sufficient heat, so the head dissipates heat faster, can be given to wear a hat. If the baby eats milk poorly, do not wear a hat is easy to make the body temperature lower, and even premature babies are prone to sclerosis. If the room temperature is suitable, you can not wear a hat, because when not wearing a hat baby’s sense of touch can be well developed, parents can touch the baby with their hands, increase the newborn baby touch, for the future sense of security and psychological development have certain benefits.