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To the Editor:—
Among middle aged men it is rather uncommon to see a man who is both bald and gray. He is either bald, without grayness in the fringe of hair at the back of his head and at the temples, or he is gray with a good supply of hair all over his head. If he is both gray and bald it will be found that the baldness usually came first. Premature aging is likely to be present in such instances. Fairly young men may be gray or bald without other physical evidences of premature aging. A man may be quite old with numerous evidences of extreme senility and yet be neither gray nor bald.For a number of years laboratory workers have noted that animals kept on synthetic diets became more or less gray and that the color of the hair returned to normal after certain of
Ballenger EG. GRAY HAIR OR BALD HEADS. JAMA. 1942;119(9):746. doi:10.1001/jama.1942.02830260060021