S. Jay Olshansky Quotes
Exercise is roughly equivalent to an oil lube and a filter for a car. You don't have to do it, but when you do, it makes the car run a lot better.
Citations
Olshansky, S. Jay, et al. "No Truth to the Fountain of Youth." Scientific American, vol. 286, no. 6, Scientific American, a division of Nature America, Inc., 2002, pp. 92-95.
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Stuart Jay Olshansky is a professor in the School of Public Health at the University of Illinois at Chicago concentrating on biodemography and gerontology and is co-founder and Chief Scientist at Lapetus Solutions, Inc.