Scientists from the University of West Virginia found out, people with some hair most often found focal alopecia, writes Jama Dermatology.
The focal alopecia refers to autoimuminous diseases, it can manifest itself in men, women and children. The researchers analyzed the data of 500 thousand people from the British Bobank and found out that the focal alopecia was most often found in people with black and dark brown hair.
Quite often, people with brown hair complain about focal baldness, scientists attributed red-haired scientists. Moreover, alopecia is found at blondes.