If you’ve ever wondered what ‘ultraviolet radiation’ or ‘UV light rays’ really are and why you should protect yourself from them, you’ll find some answers here in plain English.
Electromagnetic (EM) radiation is a form of energy that’s all around us, every day. It can take many forms, including radio waves, microwaves, x-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum. UV light is invisible to the human eye. It’s responsible for both sun tans and sunburn, proving that too much exposure to UV radiation can damage living tissue. As EM radiation, UV light is transmitted in waves or particles at different wavelengths and frequencies, including:
The wavelengths we can see are found in the middle of the EM spectrum, between infrared and UV. These wavelengths are approximately 380 nm to 740 nm.…