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Article
January 18, 1902

THE WHITENING OF THE HAIR.

JAMA. 1902;XXXVIII(3):178-179. doi:10.1001/jama.1902.02480030036004
Abstract

Metchnikoff, the great champion of phagocytosis, has begun to study the development of senile atrophy from a biologic standpoint. Because senility so often manifests itself at a time in the life of the individual when the instinct of self-preservation is pronounced, and because the wearing out of the body and spirit is not always accompanied by the feeling of need of repose, Metchnikoff suggests that much of the senility of the present day is abnormal and that it might be possible to discover remedies for it.

In order to make a start in his biologic studies of senility he has recently investigated the mechanism of the whitening of the hair,1 a phenomenon commonly regarded as the most frequent early sign of approaching senility. In certain of its aspects, at least. the change of color of the hair would seem to be within easy reach of investigation. It has been

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