Elaborate sympathetic innervation (magenta) around melanocyte stem cells (yellow). Acute stress induces hyperactivation of the sympathetic nervous system to release large amount of the neurotransmitter…more Credit: Hsu Laboratory, Harvard University
https://www.technologynetworks.com/neuroscience/news/why-does-stress-turn-hair-gray-nerve-study-provides-the-answer-329706
