Sunlight: harmful to the skin
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Our skin requires sunlight. However, the light can also cause the skin to be annihilated. Rosa has contributed a lot to the skin and bronzed skin. So it is necessary to know how to save skin.
Sunlight : In the form of waves of different sizes, the electromagnetism is coming out from the sun in many energy. The rays reaching the earth are roughly divided into three parts. We know that the Sun's light is actually a collection of seven colors. Purple, turquoise, blue, green, yellow, orange and red. The rays that are in these seven colors match our eyes. The ray wave length is 400 to 700 nanometers. I do not see the rays which are larger in size than those that are red. Its name is Infra-red ray. These produce heat. If we stand in the sun, it takes the heat, because this infra-red ray Many people used to be in the ray lamp nowadays. Many people take this ray due to rubbish or other reasons. It is not harmful to skin or body. Actually this ray works like a hot grease. And in the eyes, the wavelengths in the eyes, which are below the purple color, are called ultraviolet rays. Its wave-length is between 290 to 400 nanometers. Ultrovoyotol ray (UVR) is divided into three parts. The biggest of these are UVA. Wave-length 320 to 400 nanometers. The UVA is responsible for the dizziness that is seen in the dark skin on the skin when it comes to keen sunlight. If you do not go out in the sun, then the color of the color changes. UVB is the next step. Its wave-length is 280 to 320 nanometers.
What UVB does: When the skin turns red, then the skin becomes reddish, the UVB is behind it. Day after day, UVB is responsible for the skin being black or black in color. Changes in color are lasting. Its name is Santan. Due to the sunrise of the skin for a long time, the skin is grown. Sometimes symptoms of skin cancer appear. UVB responsible for these. Its wave-length is 200 to 280 nanometers. The ozone layer that is in the Earth's atmosphere, most of it absorbs UV, does not allow the earth to reach the surface. UVC is once again bactericidal. UV Lamp is used to sterilize operation theater. However, if this rash may be visible in any way, there may be sunburn in conjunctivitis or skin.
The cloud layer can not prevent sun UVB rays. That means that even if you spend outside on a cloudy day, it can cause damage to the skin. But the glass of the window has completely blocked this ray. Smoke or smoke can prevent the rays. UV rays reach the skin by reflecting on the mountain ice or by the sea shore. So be careful when visiting these places! Sun-rays can be prevented with a cap on the head or head of the umbrella, not whole.
There is a long-standing tolerance of skin against sunlight. It depends on how many melanin particles on the skin are, on it. Also, if the sun comes out, the skin will be able to make melanin early, depending on the sun-rowing ability to rely on. It says the ability to 'tan' it. So, before leaving the sunny sunshine, be sure to leave the arrangement.