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The sun is the primary source of life on Earth, providing light and energy. However, some of its rays can be harmful to the skin. Prolonged exposure to intense sunlight during summer can cause issues like redness, burning sensations, inflammation, and pain—a condition known as sunburn. The question arises: why exactly do the sun's rays burn the skin?
Sunlight is composed of various types of rays. Infrared rays provide heat, and visible light allows us to see, but the most dangerous are ultraviolet (UV) rays. These rays are invisible to the naked eye yet carry immense energy. When they strike the skin, they damage skin cells. The body responds to this damage with inflammation and pain, manifesting as sunburn.
Significantly, UV rays do not just come from direct sunlight; they can also reflect off surfaces like water, snow, sand, or concrete. They easily penetrate cloud cover as well. Consequently, the risk of sunburn persists even when sitting under an umbrella or on a cloudy day. Prolonged exposure to UV rays can even lead to skin cancer.
Health experts suggest several simple measures to prevent sunburn. Limit sun exposure between 10 AM and 4 PM. Wear light-colored clothing that covers your entire body. Use wide-brimmed hats and sunglasses. Apply a sunscreen with SPF 30 or higher over your entire body and reapply it every 3–4 hours. Stay hydrated by drinking plenty of water.
If you get a sunburn, immediately cool the affected area with cold water. Apply moisturizer, and consult a doctor if the burning sensation is severe. While the sun provides Vitamin D—which is essential for bone health—it is crucial to get sun exposure in a balanced manner.
Source :- IANS
