KillBait NewsHow Sunscreens Protect Against UV Radiation and Reduce Skin Cancer Risk
📰 Original title: Protectores solares: una herramienta de salud preventiva
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How Sunscreens Protect Against UV Radiation and Reduce Skin Cancer Risk
This article explains why sunscreen should be considered an essential preventive health measure rather than merely a cosmetic product. It begins by describing the different types of solar radiation that reach Earth: infrared radiation, visible light, and ultraviolet (UV) radiation. UV radiation, particularly UVA and UVB rays, can damage the skin, accelerate aging, and increase the risk of skin cancer by causing DNA mutations. UVA rays penetrate deeper into the skin and contribute mainly to photoaging, wrinkles, and pigmentation changes, while UVB rays are primarily responsible for sunburn and also stimulate vitamin D production. Both types contribute to long-term skin damage and cancer risk. The article also reviews the history of sun protection, from ancient civilizations that used natural substances such as olive oil and plant extracts to the development of modern commercial sunscreens in the twentieth century. It highlights important milestones including the creation of SPF (Sun Protection Factor) by Franz Greiter and the evolution of increasingly effective sunscreen formulations. Modern sunscreens are divided into two main categories: mineral (physical) and chemical. Mineral sunscreens use ingredients such as zinc oxide and titanium dioxide to reflect UV radiation and provide immediate protection. Chemical sunscreens absorb UV rays through organic compounds and convert their energy into heat, offering lighter textures but requiring time to become effective. The article discusses the advantages and disadvantages of both types, including concerns about skin sensitivity and environmental effects. Finally, it explains SPF ratings, clarifies common misconceptions about protection levels, and provides practical recommendations for proper sunscreen use, including adequate application amounts, regular reapplication, and special considerations for children, athletes, and individuals with sensitive skin.
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Mathrubhumi English
