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Sunscreen: Difference between revisions
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→UV Rays in Sunlight
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== UV Rays in Sunlight == | == UV Rays in Sunlight == | ||
The sun emits very powerful and dangerous rays into the earth’s atmosphere. These rays are so powerful that they can cause genetic mutations within a person’s DNA. UV rays or ultraviolet rays is the radiation present in sunlight. UV rays are electromagnetic lights that reach the earth from the sun. The UV rays are the main reasons why sunscreen is needed. The two main types of UV Rays, UVA and UVB. These rays are strong enough to penetrate the earth’s atmosphere and potentially damage a person’s skin. | The sun emits very powerful and dangerous rays into the earth’s atmosphere. These rays are so powerful that they can cause genetic mutations within a person’s DNA. UV rays or ultraviolet rays is the radiation present in sunlight. UV rays are electromagnetic lights that reach the earth from the sun. The UV rays are the main reasons why sunscreen is needed. The two main types of UV Rays, UVA and UVB. These rays are strong enough to penetrate the earth’s atmosphere and potentially damage a person’s skin. | ||
'''UVA:''' | '''UVA:''' | ||
UVA rays make up over 95 percent of UV rays that reach the surface of the earth. People are exposed to them every day and throughout their lifetime. They are longer UV waves. UVA rays are less intense than UVB rays, but they penetrate deeper into the skin. Studies have shown that UVA rays damage skin cells where most skin cancer develops. These rays are the most used ray within tanning outside or in salons. Tanning Booths are by far the more dangerous than sunbathing in the outdoors. In a tanning booth, people are twice as likely to develop skin cancer and the UVA rays emitted in the tanning salons are that of twelve times the sun. They also increase a person’s melanoma risk by seventy-five percent. | UVA rays make up over 95 percent of UV rays that reach the surface of the earth. People are exposed to them every day and throughout their lifetime. They are longer UV waves. UVA rays are less intense than UVB rays, but they penetrate deeper into the skin. Studies have shown that UVA rays damage skin cells where most skin cancer develops. These rays are the most used ray within tanning outside or in salons. Tanning Booths are by far the more dangerous than sunbathing in the outdoors. In a tanning booth, people are twice as likely to develop skin cancer and the UVA rays emitted in the tanning salons are that of twelve times the sun. They also increase a person’s melanoma risk by seventy-five percent. | ||
'''UVB:''' | '''UVB:''' | ||
UVB rays are the main cause of sunburns and the damage of the skin. These rays are the most intense of the two and they are the most harmful. Although the UVA rays penetrate the skin more deeply, UVB rays are the main cause of skin cancer in sunburns. UVB rays have shorter wavelength, but are more powerful. | UVB rays are the main cause of sunburns and the damage of the skin. These rays are the most intense of the two and they are the most harmful. Although the UVA rays penetrate the skin more deeply, UVB rays are the main cause of skin cancer in sunburns. UVB rays have shorter wavelength, but are more powerful. | ||
