Vitamin D enters the human bloodstream to help absorb calcium and phosphorus from food and can prevent and treat pediatric rickets. Ultraviolet light can also stimulate the bone marrow to make red blood cells to prevent anemia, and can kill bacteria on the skin and improve skin resistance. As you can see, it is important for newborn babies to get sunlight. When indoor sunbathing, do not isolate the glass windows, screens, which will reduce the penetration of ultraviolet radiation. Generally, babies born 3 to 4 weeks before they can be held outdoors in the sun, and the beginning of the time should be short, only part of the sun such as feet and legs, and then slowly increase the time and scope of sun exposure. The head and face should generally not be exposed directly, and can be placed in the shade or shade with a hat. How to give newborns the right sun exposure? 1. Then you can expand the range of sun exposure from the knees to the roots of the legs. 2.The first two or three days, you can sunbathe from the tips of the feet to the knees, about 5 to 10 minutes. 3. Finally, you can increase the sunbathing back for about 30 minutes. 4.Remove the diaper, you can sunbathe to the belly button for two or three days in a row, for about 15-20 minutes. If your newborn sweats during sunbathing, wipe it off with a towel and feed it with plain water or juice to replenish water. The time is 6-10 a.m. and 4-5 p.m. for newborns to sunbathe. The infrared rays in the sunlight are strong and the ultraviolet rays are weak at 6-10 a.m., which can promote metabolism; the X-ray beams in the ultraviolet rays at 4-5 p.m. can promote the absorption of calcium and phosphorus in the intestines, enhance physical fitness and promote normal bone calcification. Noon to 4 p.m. this time, the most taboo long time in the sun, this time the sun’s ultraviolet rays are the strongest, will cause damage to the skin. After the baby is full-term, you can often carry out outdoor sunshine.