Tuesday, June 23, 2020

UV light cannot be ignored

Investigators found that 48,000 people die from malignant melanoma each year, and 12,000 people die from other types of skin cancer. About 90% of these skin cancers are caused by ultraviolet radiation from the sun. Solar radiation can also cause severe sunburn, skin aging, cataracts, and pterygium (an abnormal mass of tissue grows from the conjunctiva of the inner corner of the eye and causes visual impairment when growing on the cornea), cold sores, and other diseases . This report details for the first time the global effects of solar radiation.

Dr. Maria Nella, Director of the Department of Public Health and Environment of the World Health Organization, said in a statement: "We all need the right amount of sunlight, but too much sunlight is dangerous and even fatal. Fortunately, ultraviolet rays cause Diseases such as malignant melanoma, some other skin cancers and cataracts, with simple protective measures, we can almost completely prevent them."

Humans need ultraviolet radiation to activate vitamin D produced in the body to prevent rickets, osteomalacia and osteoporosis. But ultraviolet light may also cause some cancers and immune system diseases. The report recommends that people try to find sunscreens, use sunscreens with a sun protection factor of at least 15, and refrain from participating in tissues that tan the skin. Using sunscreen does not mean that you can prolong the exposure to the sun, but it can be used to protect your skin when you have to be exposed to the sun.

The report also records that snow, sand and sea foam can reflect ultraviolet light, and diluted ozone can filter out ultraviolet light a little. People cannot see or feel ultraviolet radiation. At different times of the day, latitude and clouds can affect the amount of ultraviolet radiation that reaches the ground. A World Health Organization official said in a statement: “Personal skin type is also important. People with light skin tones are more likely to get tanned than people with dark skin tones.” The statement also detailed the global consequences of excessive solar radiation Harmful effects, especially the increase in cataract patients in Africa, Latin America, the Middle East and Southeast Asia.

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