260 citations
,
January 2020 in “Nature” Stress can cause hair to turn gray by depleting stem cells.
77 citations
,
July 2020 in “Cell” Muscles and nerves that cause goosebumps also help control hair growth.
June 2025 in “Stem Cell Research & Therapy” Isoproterenol may help treat hair loss by activating hair follicle stem cells.
Transplanted rat hair follicles grew hair and had increased but not fully restored nerve connections in mice.
57 citations
,
May 2014 in “Molecular Phylogenetics and Evolution” The research found how GPCR Class A Rhodopsin receptors are related and suggested possible substances they interact with.