We believe my husband has photodermatitis. I am trying to learn if ultraviolet UV rays come into the house with ambient light or must you be exposed to direct sunlight? If it comes through the windows with just the ambient light, is there anything reasonable we can do to lessen the radiation? See this website for more information on photosensitivity. UV-A and UV-B are also associated with tanning beds, and there are hazards associated with the overuse of these beds.
Answer to Question #12082 Submitted to "Ask the Experts"
Clouds, Water & Glass: surprising things that solar UV can pass through
How much UV radiation seeps through the windows we spend so much time behind? UVC rays are absorbed by the atmosphere, and thus do not affect us. UVB rays only affect the top layer of our skin epidermis , and are the cause of most sunburns. The results were condensed into one graph as a means to compare the UV coming through.
You can get sun damage through a window — here's how to protect yourself indoors
Most people are well aware of what time in the sun does to your skin, and the dangers that UVA and UVB rays pose to your health. However, if you stay indoors all day but by a window, are you still exposed to those sun rays? Can you top up your vitamin D while in the car? These are more difficult questions to which there are many myths floating around. However it is worth bearing in mind that we need some UVB rays to generate vitamin D.
Most of us know to wear sunscreen when we're outside in the sun, but you may need to take the same precautions when driving for long periods or sitting next to a sunny window at home. Here's what you need to know about how you can protect yourself from the sun's rays, even when you're indoors. Sun damage happens when your skin is exposed to UV rays from the sun. There are two types of harmful UV rays:. That means your skin won't get burned from sitting in the car for a long drive on a sunny day.