Which wavelengths of sunlight cause damage to the skin?

The ultraviolet (UV) wavelengths of sunlight are the ones that cause damage to the skin. UV radiation is a type of electromagnetic radiation that is emitted by the sun and other sources, such as tanning beds. There are three types of UV radiation: UVA, UVB, and UVC.

* UVA radiation has the longest wavelength and is responsible for most of the skin damage that occurs over time, such as wrinkles, sagging skin, and age spots. UVA radiation can also cause skin cancer.

* UVB radiation has a shorter wavelength than UVA radiation and is responsible for most sunburns. UVB radiation can also cause skin cancer.

* UVC radiation has the shortest wavelength and is the most harmful type of UV radiation. However, UVC radiation is mostly absorbed by the ozone layer and does not reach the Earth's surface.

It is important to protect your skin from UV radiation by using sunscreen, wearing protective clothing, and seeking shade when the sun is strongest.