In this episode, we explore the characteristics and effects of ultraviolet (UV) light, a form of electromagnetic radiation emitted by the sun and various artificial light sources. UV light consists of three main categories: UVC, UVB, and UVA, each with distinct wavelengths and effects on biological systems. While the Earth's atmosphere blocks most UVC and some UVB radiation, UVA rays can penetrate through, posing potential risks to human health such as skin aging, immune suppression, and DNA damage leading to skin cancer. We delve into the differences between these UV categories, their impact on the skin, and the importance of protection against prolonged exposure to UVA rays. Tune in to learn more about the fascinating properties and consequences of UV radiation.