You can keep the body warm by covering the ears on cold days. A good option is to wear a warm cap to keep the body warm. Wearing a warm cap keeps the head and ears covered and you can avoid frostbite, hypothermia, etc., on cold days. You can get a fever due to sudden changes in temperature or cold air during cold days, but if you put on a warm hat, then it is also possible to avoid the problem of fever. In this article, we will discuss the benefits of covering the ears and wearing a warm cap on cold days.