An curved arrow pointing right. Scientists have figured out the specific gene mutation responsible for red hair — and why it's more common in beards than on heads. Follow BI Video: On Twitter ...

Some people have red beard hair, but not red head hair. • It's because of a mutation in a chromosome involved in producing hair pigment. • Don't worry, it's not dangerous. While only a small ...

The clinic, headed by the outwardly stern Dr. Kyojô Niide - nicknamed "Red Beard" for that attribute - under his very strict guidelines, treats the poor and disadvantaged of the region.