Traditional Chinese medicine expert points out, the glass is basked in the sun, there is no calcium effect. This is because the glass can absorb the ultraviolet rays that work, and sunning through the glass actually doesn't help. So experts advise people to go out and bask in the fresh, sunny places.
In addition, there are two big mistakes to avoid in the sun.
One is to take advantage of the sun for a long time. This is wrong! In any season, between 10 a.m. and 4 p.m., especially between 12:00 noon and 4:00 p.m., most of the time, the sun will not be exposed to the sun for a long time, so the uv rays will cause damage to the skin.
The second is to eat after the sun can promote nutrition absorption. It is also undesirable. Do not eat mustard, lettuce, snail, shrimp, crab, clam or other photosensitive food before sunning, lest cause photosensitive drug rash or sunlight dermatitis.
The best time to bask in the winter.
Sun exposure in winter can accelerate blood circulation and improve hematopoiesis in human skin and internal organs. Especially in the prevention and treatment of children rickets, adult osteoporosis, and other aspects, have significant curative effect. There are two periods in the day that are best suited to the sun.
First, from 6 a.m. to 10 a.m., the infrared rays have the upper hand, and the ultraviolet light is low, which makes the person feel warm and soft, which can help to invigorate blood and remove blood stasis.
Second, from 4 PM to 5 PM, a beam in the ultraviolet ray is in the upper hand, which can promote the absorption of calcium and phosphorus in the intestinal tract, which is conducive to strengthening the constitution and promoting normal bone calcification. Healthy people should stay in the sun for 30 to 60 minutes a day.
Traditional Chinese medicine reminds, must drink plenty of water after sunshine, eat fruit and vegetable more, in order to complement sufficient vitamin C, do so can restrain melanin generation, prevent sunburn. In addition, people should be outdoors in the sun, and do not bathe in the glass indoors.