New research shows that all blue-eyed people share a common ancestor. This person lived more than 6,000 years ago and carried a genetic mutation that has now spread across the world. The exact ...

Medically reviewed by Christine L. Larsen, MD Photophobia is an abnormal sensitivity to light. It is associated with dry eye disease, migraines (severe, recurrent headaches), and traumatic brain ...

Thus, it's possible that blue-eyed people ended up having more of a competitive edge in this geographical area as blue eyes were rarer. As they explain in the paper, “The rare-colour advantage ...

Blue-eyed folks may be rarer, but their eye color has a fascinating history. All blue-eyed people can trace their ancestry back to a single genetic mutation that occurred thousands of years ago in ...