The UV index measures the strength of the sun's ultraviolet (UV) radiation. The index ranges from 0 to 11, with higher numbers indicating greater risk of sunburn and skin damage. Protective measures, ...
When you need protection from the sun, “seek out umbrellas that have a UPF rating, which refers to the Ultraviolet Protection Factor,” recommends Marisa Garshick, M.D., a dermatologist with MDCS ...