Why Does Stress Turn Hair Gray? Nerve Study Provides the Answer

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 norepinephrine. Norepinephrine drives rapid depletion of melanocyte stem cells and hair greying. Credit: Hsu Laboratory, Harvard University https://www.technologynetworks.com/neuroscience/news/why-does-stress-turn-hair-gray-nerve-study-provides-the-answer-329706?utm_campaign=NEWSLETTER_TN_Breaking%20Science%20News&utm_source=hs_email&utm_medium=email&utm_content=82337936&_hsenc=p2ANqtz-8eL8FUSY47RGT5kutWrcTqxrj9vBZCAINFXNHHBc0ZIuxFLCB5awXrCJx-mTmj_ZyFYaLk6OabGEIAyzYL-KJChkmsag&_hsmi=82337936