chapter
On Gray Hair and Oppressed Brains
Pages 12

Gray hair is universally viewed as an indication of advancing age, though the age at which hair begins to gray varies widely among individuals. Changes in hair color begin sooner than most people realize. A study of Australian blood donors in 1965, for example, revealed that, by the time they were twenty-five, 22 to 29 percent of the men in the group and 23 to 35 percent of the women had some obvious graying (Parachini, 1987). The age at which peo ple begin to gray seems to be genetically determined, as are the graying patterns.