Leonard Hayflick, in Scientific American Not in the Cards (Jan. 1980). 415 Madison Ave., New York,
N.Y. 10017.
The only obstacles separating man from eternal life may well be disease and that mysterious pattern of decay known as "the aging process." But seekers after perpetual youth will probably be disappointed. Recent findings in cell biology suggest that aging is one of the body's normal functions, instead of a breakdown of those functions, writes Hayflick, a biologist at the Children's...