Gerontologists and Senescence

Dr. Berbard Strehler, who was a professor of biology at USC, wrote, "the postponement of physical and mental senescence will mean that a person of 60 will have the outlook of a person of 50; a person of 70, the outlook of a person 56; and a person of 90 the outlook of 70."

Use information in this passage to help you develop a definition for the words "gerontologists"
(#4) and "senescence." (#5)Explain how you came to your answers.

Gerontologists would like to know why the body's calls slow down and eventually die. Slowing down or stopping this process, obviously, would slow down --or help stop-- aging itself.