How nature, nurture & chance shape how we age

Published on May 31, 2016   49 min

Other Talks in the Series: Aging

0:00
Welcome to our lecture on How Nature, Nurture and Chance Shape How We Age. My name is George Martin. I am a Professor Emeritus at the University of Washington in Seattle, Washington, USA.
0:16
This slide provides a brief outline of the lecture. We will be dealing with three fundamental questions, why organisms age? Why various species age so differently? And, of special interest to our own species, why one observes such remarkable differences in patterns of aging among different members of the same species? As a pathologist, I have done many autopsies on geriatric subjects. I have never seen two individuals who have aged in exactly the same way, either qualitatively or quantitatively. All biology students fully appreciate that phenotypes result from both genes and environment, as well as their various interactions. But there is usually less interest in the issue of chance events, one reason why I will give that component a good deal of attention in this lecture.
1:15
Let's start with the question of why organisms age.
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How nature, nurture & chance shape how we age

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