Modern young women love to take care of their skin almost “as heavy as gold”, especially white-collar intellectual women. They always try to avoid the sun, for fear that the skin of the face will be damaged. However, the sun’s ultraviolet light is a double-edged sword, can increase the synthesis of vitamin D, the body to absorb calcium plays an important role. Sunbathing 3 major health effects: 1, sun legs without cramps, “old cold legs” should often come out to the sun. Sun legs can be very good to drive away the leg cold, effectively relieve cramps in the calves, and can accelerate calcium absorption in the legs, so that the legs of the bones more robust, good prevention of osteoporosis. Especially people with rheumatoid arthritis, spring sunshine can activate the blood, alleviate the condition, play an auxiliary therapeutic role. In addition, there are many acupuncture points on the legs, through the sun’s stimulation, can make people feel light legs and feet, eliminate fatigue. 2, sun top of the head calcium hair Sun over the top of the head, can fully promote the absorption of calcium. Many people sunbathing, often like to wear a hat, in fact, the spring sun is not so strong, wearing thick clothes and wearing a sun hat, simply can not play the role of sunbathing. Especially children, parents are afraid of the sun to harm their delicate skin, always give the child to wear a hat. In fact, as long as the time control, sunbathing children’s head, help brain development and head bone growth, but also beneficial to the growth of hair. 3, sun back spleen and stomach and “the front is yin, the back is yang, sun back, can play a role in replenishing yang qi.” Weak yang qi will make people cold hands and feet, often accompanied by spleen and stomach discomfort, such as the stomach is afraid of cold or eat cold things easy diarrhea. Sunbathing back in the spring can drive away the coldness of the spleen and stomach and help improve digestion. In addition, the Qing Dynasty medical doctors have pointed out that “the back of the sun, the heart and lungs of the Lord”, the sun back can also dredge the back of the meridians, the heart and lungs are very beneficial. It seems that effective sunbathing is so many ways, want to feel the benefits of sunbathing, can be used in the right way. The sun shall not be sick with this method. Spring sunbathing 5 points of attention: 1, 10 a.m. & 4 p.m. sunbathing is the best at this time in the sun’s infrared light is strong, ultraviolet light is weak, can promote metabolism, but also to avoid harming the skin; 4-5 p.m. ultraviolet light in the X-ray beam component, can promote calcium, phosphorus absorption, enhance physical fitness, and promote normal calcification of the skeleton. Be careful not to sunbathe for more than 1 hour each time. 2, do not sunshine through the glass Research shows that, through the glass, ultraviolet light through less than 50%, if 4 meters from the window, ultraviolet light is less than 2% of the outdoor. So sunbathing through the glass actually has no effect. Should be selective to some of the better green, fresh air park sun, on the balcony can also be. 3, it is best to wear red clothes Do not wear white clothes, especially in the summer of strong ultraviolet radiation, white clothes will reflect ultraviolet rays to the face or bare arms, so that the skin is injured. It is best to wear red clothing, because red clothing radiation long wave can quickly “eat” off the killing power of short-wave ultraviolet. Don’t wear a hat, otherwise it will block the sunlight and defeat the purpose of sunbathing. If you are afraid of glare, you can wear sunglasses. 4, children sunbathing, do not long Each time to control within half an hour, sun before you can feed your baby some cod liver oil. 3 years old or younger baby, put in the cart when the distance from the ground is too low, sunlight reflection, this time to hold the baby up to the sun. If there is reddening of the skin, excessive sweating, accelerated pulse, you should go home immediately and give a cool drink or light salt water. Should not eat mustard, amaranth, marjoram, figs before sunbathing. So as not to cause photosensitive drug rash or solar dermatitis. Drink more water after sunbathing, eat more fruits and vegetables, supplemental vitamin C, can inhibit the production of melanin. 5, 10 hours of sunshine per week to prevent myopia The intensity of outdoor light is more than 10 times the indoor. The United States, Singapore and other countries, a number of studies have found that the longer the outdoor activities, children are less prone to myopia, both highly correlated. One study showed that light has to be of a certain intensity and duration to have a preventive effect on myopia. It was found that children who spent 10-14 hours per week outdoors had a preventive effect, while children who spent only 3-6 hours per week outdoors had no effect.