Another type of UV treatment you might have for cancer is called PUVA. This is less common. PUVA combines UVA light with a drug called psoralen. Psoralen makes your skin sensitive to light. You then ...

Some dermatologists say the findings, in a study published in January in the journal Nature Communications, aren’t new when it comes to concerns about ultraviolet, or UV, light from any source.

Check out the video above to learn more. Don’t forget to read the full article by Dylan Matthews, and if you want more information on UV light as a defense against disease, subscribe to ...