62 citations,
December 1941 in “Experimental biology and medicine” Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.
9 citations,
July 1982 in “International Journal of Dermatology” A 31-year-old man's hair turned white suddenly, likely due to alopecia areata.
February 2019 in “PubMed” Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
105 citations,
April 2005 in “Cell” Hair graying happens because certain cells aren't maintained properly.
47 citations,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Premature graying of hair may suggest health issues and currently lacks effective treatments.