Opis:

In this book a noted expert on gerontology summarizes, in clear and readily understandable language, exactly what science has learned about why the ageing process occurs in man and whether and how it can he controlled. The author reveals the role of heredity, hormones, glands, and sex in human senescence. He traces the history of man’s attempts to ward off old age. He covers in detail the recent controlled laboratory experiments that have been performed on animals and explains what they have taught science about prolonging man’s life span.