Ultraviolet Light (UV)

Ultraviolet (UV) light is a type of electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays. It is produced naturally by the sun and can also come from artificial sources like tanning beds and black lights. UV light plays a role in various processes, such as helping our bodies produce vitamin D, but excessive exposure can damage skin and eyes, leading to burns or increased cancer risk. Because UV is invisible to the naked eye, understanding its effects is important for protecting health while benefiting from its useful applications.