Sunlight can be seen everywhere, but why does it get old when you bask in the sun?

<> sunburn. ** of epidermal cells that destroy the stratum corneum.

And the stratum corneum is the best moisturizing barrier! Makes ** dry and dehydrated, dermis.

The elastic fibers in the are damaged, fine lines, wrinkles are produced, and then sagging and sagging.

Sun protection also refers to avoiding excessive exposure. When we go to the plateau or the seaside, or when the summer sun is scorching, we definitely need to do a good job of sun protection.

But the soft sunlight is not too comfortable, and it is actually very good for our body.

The sun is the source of all things, and the reproduction of life is inseparable from it. Even our architects refer to the "sunshine standard" when designing and building houses.

to design and adjust the housing to ensure the normal demand for sunshine.

As long as 10-30 minutes of sun bathing a day can complete the absorption of calcium, not all day in the sun. So the sun still has to be sunburned, sunscreen.

You still have to paint it.

Vitamin D is produced

Promotes the absorption of calcium, which is beneficial to the body. On the other hand, it can not be exposed to the scorching sun for a long time, so that the aging becomes rough, especially under the poisonous sun in the hot summer, it will burn, and even make people suffer from heat stroke.

Severe heat stroke can also cause heat stroke.

Life-threatening. To be sunburned, you see that the ancients did not have sunscreen, and they dried in the sun every day. It's just that the modern human body is too poor, so let's dry it properly.

Spit sunscreen in the sun, haha. It depends on what your needs are.

I vomited sunscreen on my neck and face, and it was good to get sun, both sun protection and sun.

This is the difference between the rural elderly and the urban elderly, the rural elderly can only pass the time like this, the children are busy and have no time to accompany them, the local conditions are poor, and the most important thing is that there are not thousands of retirement salaries every month, only basking in the sun to supplement calcium. The elderly in the city are a lot of retirement salaries to pick up, dance dam dance, fishing, play mahjong, and travel.

In fact, in winter, when there is nothing to do, there is sun, and it is warmer to bask in the sun outside the house, which can be sunburned all over the body, and the roasting fire only roasts the front half of the body, and the back can't be baked, the ancients didn't have a common saying"The front was scorched, and the back was cold"

Because the sun has strong ultraviolet rays, it is directly irradiated on the sun, which is very harmful to the sun, and it is very tender and easy to sunburn, so the sun will get old.

Ultraviolet radiation in the sun can accelerate keratin aging, accelerate the formation of melanin, and look like aging.

Getting old has nothing to do with basking in the sun, even if you don't bask in the sun for a lifetime, you will get old when you should be old, the human life span has a limit, and people will always get old.

Because the ultraviolet rays of the sun are very strong, even if they are filtered by the atmosphere, if people are exposed to the sun for a long time, it will cause them to age faster, and they will look old, so they can't always bask in the sun.

Exposure to the sun can effectively prevent ** disease, and proper exposure to ultraviolet rays can increase ** resistance. Moreover, sun exposure can effectively enhance the body's immunity, increase the vitality of phagocytic cells, and effectively eliminate pathogenic bacteria in the body.

Basking in the sun can effectively promote blood circulation, increase metabolism, regulate the central nervous system of the human body, and also has a certain effect of calcium supplementation. However, long-term exposure to the sun can easily lead to tanning, and excessive exposure to the sun will lead to the occurrence of cancer, and excessive ultraviolet radiation will also make people unresponsive.

Therefore, in the process of basking in the sun, you should take appropriate sun protection measures.

Long-term sun exposure will make ** dark, and in severe cases, sunburn, and even heat stroke, so sun protection is very important!

First, the body's calcium will be replenished very sufficiently, and secondly, the legs will be very strong. Thirdly, the complexion of the human body will also become very dark, fourthly, it may cause some ** diseases, and fifthly, there are no symptoms of osteoporosis.

Sunlight contains ultraviolet rays, and proper irradiation of ultraviolet rays can promote the synthesis of vitamin D and promote the absorption of calcium Excessive exposure to ultraviolet rays will make it rough and even cause diseases

Sun exposure can turn ** into a beautiful bronze. However, excessive sun exposure can sometimes cost you your life. Not only does it cause premature aging, dryness and wrinkles, but it also increases the risk of cancer. Even sun protection measures cannot completely avoid damage.

Daylight touches the Earth in two forms, ultraviolet long-wave (UVA) and ultraviolet (UVB). According to reports from foreign health sources, exposure to UVA can cause premature aging, wrinkles and browning. UVB can cause sunburn.

Both types can cause severe damage and lead to cancer. Tanning brown is an indication of damage, but it is often mistaken for a sign of health. In order to protect itself, the body produces more melanin, which is a substance that makes ** black.

**The risk of cancer is directly related to the length of exposure to sunlight. Exposed areas such as the face, arms, and legs are most likely to develop into **cancer. People who need to work outdoors every day have the greatest risk of developing **cancer.

** and ergosterol and 7 dehydrocholesterol in the subcutaneous tissue can form VD2 and VD3 under the action of ultraviolet rays, which can promote the absorption of calcium and regulate calcium and phosphorus metabolism under the action of the liver, and maintain the normal growth and development of bones.

Sun Li Han has strong ultraviolet rays, and this light exposure can damage **, **aging.

Because excessive exposure to ultraviolet rays in the sun will make people's protection worse.

While basking in the sun, there will be strong ultraviolet rays on your **, and long-term sun exposure will cause aging, peeling, and blackening.

Too much UV light can darken and damage.

Strong ultraviolet rays are exposed to your **, and prolonged exposure to the sun will cause aging.

If you think about it, you know that if you dry all your cells, you won't get old.

The sun is a red-hot gas planet that shines on its own. It has a surface temperature of about 6,000 and a core temperature of up to 15 million. The radius of the Sun is about 696,000 kilometers, which is about 109 times the radius of the Earth.

Its mass is tons, which is about 332,000 times that of the Earth. The average density of the Sun is grams per cubic centimeter, which is about 1 4 of the density of the Earth. The average distance between the Sun and our Earth is about 100 million kilometers.

The Sun is an ordinary star in the Milky Way, located on the spiral arm of Orion north of the galactic plane, about light-years away from the galactic center, and it orbits the galactic center at a speed of 250 kilometers per second, and it takes about 100 million years to complete one revolution. The Sun is also rotating, and its cycle is about 25 days in the equatorial zone of the Sun; The polar region is about 35 days.

Through the analysis of the solar spectrum, it is known that the chemical composition of the sun is almost the same as that of the earth, but the proportions are different. The most abundant element on the sun is hydrogen, followed by helium, but also carbon, nitrogen, oxygen, and various metals.

Clothes that change color when exposed to the sun are tweed clothes.

How to wash your tweed clothes:

1) Tweed clothes should not be washed, washing is easy to lose hair, shrinkage and deformation, it is recommended to send it to a professional dry cleaner for cleaning. The number of dry cleaning should not be frequent, generally about once a year or two.

2) If there are stains on the tweed clothes, they should be washed in time. The longer the same stain stays on it, the less likely it is to be washed off; In addition, after a long time, the stain penetrates into the wool fiber, and it will inevitably rub hard when cleaning, which is more likely to cause damage to the woolen coat.

3) For stained tweed clothes, you can try to deal with them in the following way: spread the clothes on the table, soak them in warm water (about 30) with a thick white towel (don't wring them too dry) and put them on the tweed coat, gently pat them with a thin stick to transfer the stains in the clothes to the hot towel, and then wash the towel, and repeat it several times.

Tweed clothes are warm and comfortable to wear, but they have shortcomings such as pilling and easy insect moth, so they should be maintained to maintain their long service life.

1) Clean the dust on the clothes frequently: After the tweed clothes are worn, they are easy to get dusty, so it is best to remove them as soon as possible. Once dust falls on it that is difficult to remove, do not brush it with a brush. There is a special roller on the market for cleaning woolen clothing, which is very effective in removing such dust.

2) Remove wrinkles: Tweed clothes can be given enough humidity to smooth out the wrinkles on the clothes. The steam iron can be adjusted to a low temperature and ironed at a distance of 1 2 cm from the wool coat; You can also put a white towel over the garment and then iron it, so that it will not hurt the fabric fibers and will not leave ironing marks.

3) Keep it dry and moth-proof: Worn clothing may absorb body sweat stains, so it should be dried in a well-ventilated place before putting it away. If it is kept in a cabinet, it is recommended to put in some desiccant to keep it dry.