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Publisher's Summary

A revolutionary examination of why we age, what it means for our health, and how we just might be able to fight it.
In Cracking the Aging Code, theoretical biologist Josh Mitteldorf and award-winning writer and ecological philosopher Dorion Sagan reveal that evolution and aging are even more complex and breathtaking than we originally thought. Using meticulous multidisciplinary science as well as reviewing the history of our understanding about evolution, this book makes the case that aging is not something that "just happens", nor is it the result of wear and tear or a genetic inevitability. Rather, aging has a fascinating evolutionary purpose: to stabilize populations and ecosystems, which are ever threatened by cyclic swings that can lead to extinction. When a population grows too fast, it can put itself at risk of a wholesale wipeout.
Aging has evolved to help us adjust our growth in a sustainable fashion as well as prevent an ecological crisis from starvation, predation, pollution, or infection. This dynamic new understanding of aging is provocative, entertaining, and pioneering and will challenge the way we understand aging, death, and just what makes us human.
©2016 Josh Mitteldorf and Dorion Sagan (P)2016 Macmillan Audio
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Customer Reviews

Most Helpful
2 out of 5 stars
By Amazon Customer on 03-05-17

Not what I expected.

This entire book is simply trying to prove (to the public, or the science community, I couldn't tell where it was aimed) that group selection is the main culprit behind why we are programmed to age. They do this by attacking the viewpoint of every single other theory accepted by science up to this point. Is somebody detesting the 'Disposable Soma Theory' from 92 different approaches something that may hold you interest? Would you mind hearing the term 'Neo-Darwinian theory' 492 times? If so this book is for you. But that's not what I was looking for. And the cherry on top was the fact that the narrator to the audio book sounds like Spicoli from Fast Times at Ridgemont High. A southern California surfer may not have been the best choice to narrate this book.

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3 out of 5 stars
By David R. Kent on 10-11-17

A mix of good and bad

The first few and last few chapters of this book are terrible. The author goes on and on with his amateurish thoughts on philosophy, economics, and other subjects. The middle chapters were a very interesting coverage of the evolution of aging as well as research on aging. The book is worth it for the middle chapters. The begining almost made me quit the book early, and the end made me question the credibility of the middle chapters.

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