A team of researchers led by University College London in the U.K. has identified IRF4 as the first gene associated with graying hair.

A genetic cause for gray hair has been found, according to a new study. 
In a press release about the research, lead author Dr. Kaustubh Adhikari with University College London in the U.K. stated that “...this is the first time a gene for greying has been identified in humans, as well as other genes influencing hair shape and density.” 
The culprit has been identified as IRF4 which is “involved in regulating producti