Ultravjollcës

Ultravjollcës, also known as ultraviolet radiation or UV radiation, is a form of electromagnetic radiation that falls on the electromagnetic spectrum between visible light and X-rays. It is invisible to the human eye. UV radiation is produced by the sun and can also be generated by artificial sources like tanning beds and black lights. The sun's UV radiation is divided into three types: UVA, UVB, and UVC, based on their wavelength. UVC is the shortest and most energetic, but it is almost entirely absorbed by the Earth's ozone layer. UVA and UVB reach the Earth's surface. Exposure to UV radiation has various effects. In small amounts, UVB is essential for the production of vitamin D in the skin, which is important for bone health. However, excessive exposure to both UVA and UVB can be harmful. It is a major cause of sunburn and premature skin aging, leading to wrinkles and age spots. UV radiation is also a known carcinogen and is the primary cause of most skin cancers, including melanoma. Furthermore, UV exposure can damage the eyes, potentially leading to cataracts and other vision problems. Protecting oneself from overexposure through sunscreen, protective clothing, and avoiding peak sun hours is therefore recommended.