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UV rays: what they cause and how to protect yourself

UV rays, acronym for “ultraviolet,” are a form of electromagnetic radiation with wavelengths shorter than visible light. They are divided into three categories: UVA (315-380 nm), UVB (280-315 nm), and UVC (100-280 nm), of which only the first two rays reach the Earth’s surface.

What damage can UV rays cause to our body?

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