Ultraviolet (UV) light is a form of electromagnetic radiation with shorter wavelengths than visible light. While invisible to the human eye, it is a component of the energy coming from the sun. UV radiation is further divided into two types: UVA and UVB. UVA rays are responsible for long-term skin damage like wrinkles and aging, while UVB rays cause sunburn. Ultraviolet radiation can also be emitted by artificial sources, such as tanning beds and sun lamps.
Key points:
- Invisible to the human eye: UV light is part of the electromagnetic spectrum with wavelengths shorter than visible light.
- Source: The sun is the primary source of UV radiation, although artificial sources like tanning beds and sun lamps exist.
- Types: UV radiation is categorized into UVA and UVB, each with different effects on human skin.
Practical insights:
- UV radiation can be harmful to human health, causing skin cancer and premature aging.
- Protecting yourself from UV radiation is crucial, especially during peak sun hours.
- Applying sunscreen, wearing protective clothing, and seeking shade are recommended for reducing UV exposure.
