The baby sleeps with his hands placed outside cold will not cause a cold. Because the end of the baby’s blood vessels are relatively thin, so the blood circulation function is relatively poor, which leads to the child often appear hands and feet cold condition, this is a normal phenomenon, generally will not cause a cold, so parents do not need to worry too much about this situation. But in the cold season, if the indoor temperature is relatively low, avoid putting the baby’s hands outside when the child sleeps, because it is very easy to cause cold and cold, resulting in a variety of complications. Children in the cold season to prevent colds, usually drink more hot water, you can drink some chicken soup, wash your hands diligently, wash your face with cold water. Eat more vegetables and fruits, drink orange juice or kiwi juice and other fruit juice with high vitamin C content to improve their immunity. Pay attention to keep warm and avoid catching cold.