Add Yahoo as a preferred source to see more of our stories on Google. Understanding the UV index can help you protect yourself from further, painful burns — and long-term skin damage. "The UV index ...

Sunburn has traditionally been attributed to UV-induced DNA damage. However, a new study reveals that RNA, another vital cellular molecule, plays a major role in triggering acute sunburn reactions.

DNA can be damaged by normal cellular processes as well as external factors such as UV radiation and chemicals. Such damage can lead to breaks in the DNA strand. If DNA damage is not properly repaired ...

No matter what you complexion, ultraviolet radiation (UV) from the sun or tanning beds will damage your skin.

True. There is no reliable evidence that Wi-Fi, mobile phones, or microwave ovens cause cancer, as they emit non-ionising ...