The open air for the new-born child is of great importance in the first months. It is a well-known fact that people who are not already out in the open air and are unable to receive direct sunlight are more easily caught in many diseases than others, such as rickets. This disease, which is caused by the absence of vitamin D, depends on whether or not to take the sun's rays; Because D vitamins only form under some kind of ultraviolet rays called Dorno rays. If any object, a window glass, enters between the person and the sun's rays, this event can not take place, meaning that vitamin D can not form. For vitamin D to form, the baby must face direct sunlight/ismail.