Hippocrates (c460-c360 B.C.) divided a man's life into periods of seven, connected no doubt with the mystic significance attached at a much earlier time in the world's history to the number seven.

He wrote:

"In man's nature their are seven periods which they call ages; infant, child, adolescent, youth, man, elderly man, old man: an infant is up to 7 years, the cutting of teeth; a boy up to the beginning of puberty, 14 years; an adolescent, up to the appearance of down on the chin at 21 years; youth to the end of development at 28 years; man up to 49 years; elderly, up to 57 years; and after this an old man."1

This content is only available via PDF.
You do not currently have access to this content.