Medically reviewed by Christine L. Larsen, MD Photophobia is an abnormal sensitivity to light. It is associated with dry eye ...

The new study showed that the frequency of people with dark skin was still high in parts of Europe until the Copper Age (also ...

Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

This is especially handy during video calls when people are going to be looking at you for long periods of time, as that light gets reflected right back at your screen and can make your eyes look ...