Sunbathing through glass cannot produce the effect of calcium supplementation for the following reasons:
1. The production of vitamin D in the skin is mainly due to exposure of the skin to ultraviolet rays and storing the 7- Dehydrocholesterol becomes vitamin D3.
2. Although you can indeed be exposed to ultraviolet rays through glass, not all ultraviolet rays can promote vitamin D3 production in the skin.
3. Ultraviolet rays can be divided into UVA and UVB. UVA is not easily blocked by glass and can irradiate the body through glass. Although they do not cause sunburn, they accelerate skin aging. It also has no effect on promoting vitamin D production in the skin.
4. UVB can help the skin produce vitamin D, but it will be blocked by glass. ByTherefore, basking in the sun through a glass will not provide calcium supplementation. At the same time, outdoor UVB, if exposed to it for a long time, can cause redness and swelling of the skin and even be carcinogenic. However, the penetrability of UVB depends on the glass material and it can also penetrate glass in small amounts.
Note: If you want to replenish your calcium intake through sunlight, simply get 10 minutes of sunlight each day. Because during these 10 minutes, the skin can synthesize the vitamin D it needs for the day.
Detailed information
Sunbathing has many benefits, but you should not overexpose yourself to the sun. Generally speaking, people with lighter skin should sunbathe. 3 ~ times a week Four times 10-20 minutes of sunshine can meet the needsof the body when it comes to the production of vitamin D. If you want to synthesize vitamin D artificially, it is best to bask in the sun during the sunny hours from 10 a.m. to 2 p.m. When it's very hot, simply bask in the sun for 5-10 minutes at a time. (Friendly reminder: If you are sitting in the sun in the hot season, be sure to wear a sun hat.)
It should be remembered that although sunbathing is good for physical health and mental, you should not choose the same day as the sun. She was exposed to the sun almost completely naked for three to two hours straight. Absorbing a small amount of sunlight can "rejuvenate the body and mind" and make people healthy and energetic, but too much will consume energy and energy and may lead to the risk of skin cancer. We must change with the seasons and use our own experience to decide itHow long to stay in the sun to get good results. To synthesize vitamin D, you don't have to be completely naked in the sun. and shorts.
In addition, special attention should be paid to the fact that excessive exposure to the sun can easily turn moles on the human body into melanoma or skin cancer. When basking in the sun, be sure to wear sunglasses. protective clothing to cover the area with moles.
Baidu Encyclopedia: Things to Note When Basking in the Sun
Can you supplement your calcium intake by basking in the sun through a glass?
Baking in the sun through a glass has no calcium supplementation effect. This is because glass can absorb ultraviolet rays which play a role, so basking in the sun through glass actually has no effect. This is why experts knowurge people to go outside and bask in the sun, where the air is cool and sunny.
Also, there are two major misunderstandings to avoid when it comes to tanning.
The first is to stay in the sun longer when the sun is out. Do thisThe law is false! Regardless of the season, it is best not to stay in the sun for a long time between 10 a.m. and 4 p.m., especially between noon and 4 p.m., as ultraviolet rays at this time will damage the skin.
The second is that basking in the sun after eating can promote nutrient absorption. This is also not recommended. Do not eat photosensitive foods such as mustard greens, lettuce, snails, shrimp, crabs and clams before basking in the sun to avoid causing a photosensitive rash or solar dermatitis.
Is it useful to bask in the sun through a window? Do you needuse solar energy through glass to supplement calcium?
It’s no use. Sunbathing can help the body obtain vitamin D, and vitamin D can help the body absorb calcium. More precisely, it is the sun's ultraviolet rays that help people convert vitamin D precursors in the skin into vitamin D.
But ultraviolet rays have a particularity: their penetrability is relatively low . A thin piece of paper, a layer of sunscreen with an SPF above 30, or even a mist can block out ultraviolet rays. effect on the synthesis of vitamin D in the skin.
Detailed information
Notes on sunbathing:
1. Master the right tanning time
In winter, it is generally around 11 a.m.-12 p.m.; in spring and autumn it is usually around 10-11am in summer it is usually around 9-10am. The duration of the bathsun should not be too long each time. The duration can be gradually increased from 5 to 10 minutes. Try not to tan for more than 30 minutes at a time.
2. Choose appropriate clothing
It is best not to let your child receive direct sunlight, let alone expose your baby to the sun. Wear a hat for your baby A. a small hat with a brim is essential. In winter, be sure to dress warmly to enjoy the sun.
3. Choose a suitable environment
It is better to go to a community or park with lawns and shrubs, because such an environment is calmer and the air is fresher. Both adults and children can easily get into a good mood, so it is best to avoid crowded places when basking in the sun.
China News Network - Taking stock of misunderstandings about calcium supplementation for childrenelderly people: it is not safe to supplement calcium from the sun through glass
Can I supplement calcium from the sun through glass
Many people know that basking in the sun can help us replenish calcium. However, when people bask in the sun, they want to replenish calcium but don't want to tan, so. many people choose to bask in the sun through a glass window. Because many people think that this way they will not tan and can take a calcium supplement. So is it useful to bask in the sun through a window? Do you need to use solar energy through glass to supplement calcium?
1. Is it useful to bask in the sun through a glass?
(1) Is it useful to bask in the sun through a glass to replenish calcium?< /strong> Supplementation ofcalcium is not effective. In summer, many people want to bask in the sun to promote calcium absorption, but worry that direct exposure will cause sunburn. Sunbathing under glass is not effective in promoting absorption calcium and can cause sunburn. Glass blocks part of UVB, and the synthesis of vitamin D by sunlight relies on UVB (UVB irradiation can promote the conversion of 7-dehydrocholesterol in the skin into cholecalciferol, which is endogenous vitamin D3), therefore it promotes better absorption of calcium in case of direct contact. (2) When is the best time to sunbathe? Exposing to the sun can accelerate blood circulation in the skin and internal organs and improve hematopoietic function. . It is very useful in the prevention and treatment of rickets in echildren and osteoporosis in adults. There are two times of day that are best for basking in the sun. First of all, from 6:00 a.m. to 10:00 a.m. At this time, infrared rays are prevalent and ultraviolet rays are weak, which makes people feel warm and gentle , and can promote blood circulation and eliminate blood. stasis. Second, from 4 p.m. to 5 p.m. At this time, the ultraviolet ray beam has the upper hand, which can promote the absorption of calcium and phosphorus in the intestines. , which is beneficial for strengthening the body. Promotes normal bone calcification. (3) How long should one bask in the sun at a time? The time of basking in the sun should be determined according to intensity. ultraviolet rays from the sun in different seasons. If the time is too long, the skin will be sunburned, the brainmay be deprived of oxygen and dizziness may occur. Summer: 20 minutes, no more than half an hour; Spring and autumn: 30 minutes; Winter: 30-40 minutes;< /p > (4) What to pay attention to 1. After sunbathing, you should drink more water and eat more fruits and vegetables to supplement enough vitamin C. This can inhibit the formation of melanin to prevent sun spots. 2. Go outside to bask in the sun, do not bask in the sun through a glass window indoors, as this will not be effective for calcium supplementation. 2. The best time to bask in the sun (1) Morning 6. 10 a.m. is one of the best times to bask in the sun. At this time, the sun's infrared rays are strong and ultraviolet rays are weak. Infrared rays can improve themicrocirculation of the body, promote blood circulation and eliminate blood. stasis and can also activate biological macromolecules inside the body. It activates tissue cells, enhances immunity, improves the phagocytic function of phagocytes in the body's blood, and has anti-inflammatory and swelling effects. (2) 11 a.m. to 12 p.m. The weather in winter is cold and the sunlight is relatively weak. sunlight from 6 to 10 a.m., so in winter You should avoid sunbathing between 11 a.m. and 12 p.m. During this period, the sun's infrared and ultraviolet rays are relatively high, but the A beam of ultraviolet rays is very. high during this period, which can effectively promote the synthesis of vitamin D and promote the synthesis of calcium, but because the infrared rays are relatively high, it is not suitable for basking in the sun in winter.Too long forr avoid skin burns. (3) Afternoon 4 p.m. to 5 p.m. is the best time to bask in the sun and replenish calcium. During this period, there are more ultraviolet rays. The sun's rays are weak, and the A beam of ultraviolet rays can promote the synthesis of sun vitamins in the human body. This is the best time to store vitamin D. Therefore, exposure to sunlight during this time can promote absorption. of calcium and phosphorus in the intestines, improves physical fitness and promotes normal bone calcification. Note: As the day is longer in summer, the sun is still very strong between 4 and 5 o'clock. You must therefore postpone your exposure to the sun to avoid any exposure to the sun, which could cause physical discomfort. (4) The principle of calcium supplementation in the sun The ultraviolet rays of the sunl can promote the production of provitamin D3 from 7-dehydrocholesterol in the skin, then depending on skin temperature, it is converted to vitamin D3, which is transported and absorbed into the blood by lymphatic transport, then active vitamin D is generated by the action of hydroxylase in the liver and kidneys. Active vitamin D can promote intestinal absorption of calcium and phosphorus, promote bone formation, and have the effect of preventing and treating osteoporosis. (5) Other effects of sunbathing The sun's infrared rays can penetrate the skin to the subcutaneous tissues, playing a role in heating and producing blood. vessels Develop and promote blood circulation and metabolism throughout the body. (6) Precautions when basking in the sun 1 When basking in the sun, do not use glass. Studiesshowed that when tested on glass, less than 50% of ultraviolet rays passed through the window. If you move 4 meters away from the window, the ultraviolet rays will be even less, less than 2% of the outside light.
3. Babies who have symptoms of rickets or who have never taken cod liver oil or calcium tablets are not suitable for basking in the sun. You should take vitamin D preparations for a while before going out into the sun.
Generally, you can supplement calcium by basking in the sun through a glass, which can effectively promote the digestion and absorption of calcium. However, some people are particularly deficient in calcium, so actively supplementing their calcium intake is recommended. When the conditionsallow, reasonable supplementation is required under the direction of a physician. When you take calcium supplement, you can supplement it through diet or by taking oral medications, which can effectively improve the problem of calcium deficiency.
01The benefits of sunbathing through glass
Sunbathing through glass can replenish calcium, and can also effectively reduce exposure to ultraviolet and avoid skin damage. In fact, basking in the sun through a glass can accept light exposure, which can promote the synthesis of vitamin D, effectively promote digestion, and can also promote the absorption of calcium, but the overall effect is not 's not particularly good.
02Effects of calcium deficiency
If people have a calcium deficiency, their growth and development may be affected, en particular some people will experience developmental delays. Subsequently, I had difficulty sleeping at night and even had problems such as delayed teething and delayed fontanel closure.
03How to supplement calcium effectively
Calcium should be supplemented effectively throughout life, primarily through milk supplementation, for example, ensuring adequate intake adequate milk. In addition, the diet should be diversified. Once the calcium deficiency is particularly obvious, calcium can be effectively supplemented by oral intake to avoid the serious consequences of calcium deficiency on the body.