It's no use. The sun's ultraviolet rays are divided into ultraviolet A, ultraviolet B and ultraviolet C. Almost all UV-C is absorbed by the ozone layer and has little effect on humans. Ultraviolet A has strong penetrating power and can penetrate most transparent glass and plastics.
Ultraviolet B is mainly absorbed by the ozone layer and less than 2% reaches the Earth's surface. They have low penetrating power and will be absorbed by transparent glass, but ultraviolet B can promote the metabolism of minerals and vitamin D in the body. Therefore, exposure to sunlight through glass cannot promote calcium absorption.
The best place to bask in the sun is outside. Even if you need to bask in the sun indoors for various reasons, you should open the windows to allow direct contact of sunlight with your room.e skin. “Shorts and short sleeves in summer, exposed face and hands in winter” are the best choices. Additionally, sunglasses can prevent eye damage from direct sunlight; Hair hats can also prevent hair from getting sunburned.
Detailed information:
The principle of calcium supplementation in the sun: ultraviolet B rays from the sun can act on the skin human, The original 7-dehydrocholesterol is converted to vitamin D, which is absorbed into the blood and metabolized by the liver and kidneys to become active vitamin D;
The latter can be found in many tissues and organs such as the intestines. , kidneys and bones. It exerts a biological effect, which can not only promote the absorption of calcium and phosphorus, butalso directly adjust bone metabolism, thereby achieving the effect of calcium supplementation. Although some vitamin D can be supplemented through diet, around 80% still needs to be synthesized through the pathways mentioned above.
People's Daily Online - Why can't you take a calcium supplement when basking in the sun through a glass window?
Regular exposure to sunlight can replenish calcium. What issues should we pay attention to when basking in the sun?
The effect of calcium supplementation may not be particularly obvious when exposed to sunlight through glass.
The main purpose of sunbathing is not to supplement calcium, but to supplement vitamin D. The main function of vitamin D is to promote intestinal absorption of calcium , to increase coordinationmuscle ation and prevent falls. When ultraviolet rays hit the skin, the 7-dehydrocholesterol in the skin will gradually convert vitamin D into it. Sunbathing through the glass will block part of the ultraviolet rays, and the amount of ultraviolet rays will be greatly attenuated, affecting the skin. absorption of vitamin D and absorption of calcium.
You must be exposed to ultraviolet rays from outside with adequate protection. Ultraviolet rays will attenuate through the glass, especially B-segment ultraviolet rays that irritate the skin, which will affect the conversion of vitamin D, thereby affecting the absorption of calcium. Most calcium should be obtained from food, such as milk or calcium tablets.
Benefits of sunbathing:
1. It can promote the absorption of various trace elements in the body, including vitamin D.depositedon the bones.
2. It can help prevent bone and joint diseases, such as osteoporosis. For people with rheumatoid arthritis, regular exposure to sunlight may provide some anti-rheumatic effects.
3. Sunbathing helps with food digestion and absorption function of the gastrointestinal tract, and will significantly improve digestion and absorption capacity.
4. Sunbathing also has some benefits on the endothelial function of cardiovascular and cerebrovascular vessels. They can increase the function of cardiovascular and cerebrovascular endothelial cells and improve the blood supply of cardiovascular and cerebrovascular vessels.
Is it good for the body to bask in the sun through a window?
It affects our human skin, causing 7-dehydrocholesterol to our skin. be damaged byultraviolet rays. It is transformed into vitamin D under irradiation, then absorbed into the blood and metabolized by the liver and kidneys into active vitamin D, which can promote the absorption of calcium and phosphorus in several tissues and organs such as the intestines, kidneys and bones.
But sunbathing also requires the right method. Some people like to lie lazily on the bedroom balcony after eating and bathe in the sun. They believe that tanning in this way can replenish calcium. is very important for calcium replenishment. It has no effect. However, the penetration of ultraviolet B is very low. A piece of paper or better sunscreen can insulate it. Therefore, sunlight passing through the glass has virtually no effect on the synthesis of active vitamin D. If you want to achieve the best results, To benefit from the effect of a supplementcalcium, you should open the windows or go outside to bask in the sun. Additionally, it alleviates calcium deficiency caused by vitamin D deficiency. The amount of sunlight we receive varies greatly depending on the latitude of our birthplace and the season of our birth month.
The role of sunbathing is not to directly supplement calcium, but there is an inseparable connection between sunbathing and calcium supplementation. Sunbathing exposes the skin to ultraviolet rays, which convert cholesterol in the oil on the skin's surface into vitamin D3. Vitamin D3 can promote calcium absorption. People often say that sunbathing replenishes calcium. In fact, what you get from sunbathing is vitamin D. Vitamin D and calcium are like the relationship between a gun and a bullet. The main function of viTamin D is to promote the absorption and use of calcium. Both must cooperate and are indispensable. There are two main members: vitamin D2 and vitamin D3. Vitamin D2 exists mainly in plants and mushrooms while vitamin D3 is mainly distributed in fish and can be synthesized in the human body.
Should plant photosynthesis take place under the action of ultraviolet rays? Plastic greenhouses block ultraviolet rays. So why can plants in greenhouses grow well? We see that this conclusion is not necessarily correct. High-quality food sources of calcium typically include dairy, vegetables, and soy products. These are not only reliable but also contain high-quality protein. even if they contain a lot of calcium, their use is low and therefore do not constitutenot a reliable source.
Yes.
From research on Baidu Health, we learned that basking in the sun through glass has some benefits for the human body. The glass cannot block too much due to the heat of the sun, you can feel the heat of the sun even when basking in the sun through the glass, which can help drive away the cold on your body. At the same time, it can promote blood circulation. body and relax people's mood. Additionally, if you have green plants at home, you can also carry out photosynthesis using sunlight through glass. Photosynthesis will produce oxygen and increase the oxygen content of the interior. It should be noted that vitamin D3 formed after exposure of the skin to ultraviolet rays can promote the absorption of calcium and phosphorus in the intestine, thereby helping the body to better obtain nutrients.ts. However, glass blocks some ultraviolet rays, making it easier to bask in the sun. through the glass will cause The effect of calcium supplementation was reduced. In addition, keeping windows closed for a long time is not conducive to air circulation, so it is recommended to open windows regularly to change the indoor air, or go for a walk outside when it is nice weather to breathe fresh air. Pay attention to taking sun protection measures to avoid body damage caused by sun exposure.