Cracking the Aging Code: The New Science of Growing Old - And What It Means for Staying Young

"Theoretical biologist Josh Mitteldorf and ... ecological philosopher Dorion Sagan [posit] that evolution and aging are even more complex and breathtaking than we originally thought. Using ... 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"--