Survival of the Sickest: The Surprising Connections Between Disease and Longevity (P.S.)

Dan Ariely on Survival of the Sickest
MIT professor Dan Ariely has become one of the leaders in the growing field of behavioral economics, and his bestselling book debut, Predictably Irrational, has brought his ideas--and his ingenious experiments and charming sense of humor--to a much wider audience. With the simplest of tests (often an auction or a quiz given under a few conditions) he shows again and again not only that we are wired to make irrational decisions in many situations, but that we do so in remarkably predictable ways.

I have always been puzzled by the way in which genetic diseases have managed to survive throughout the ages. How could it be that these diseases were able to withstand the evolutionary process, where only the most fit survive, and continue to be transferred from one generation to the next? Survival of the Sickest provides a thought provoking yet entertaining explanation to this puzzle.

In this insightful book Dr. Sharon Moalem demonstrates how conditions that are considered unhealthy (such as hemochromatosis, diabetes, and high cholesterol), or even deadly in extreme cases, might actually put their carriers at an advantage in combating other life-threatening illnesses. For example, he explains that hemochromatosis, a disease that, if left untreated, will kill you, may have actually been a defense against the deadliest pandemic in history--the bubonic plague during the 14th century. It turns out that this genetic mutation, which continues to be passed down through generations, actually helped spare many lives at one point.

Throughout the book, Dr. Moalem draws many connections between seemingly disparate subjects, such as the accidental invention of ice wine and cold diuresis, in order to illustrate the basic mechanisms of genetics and medicine in charming and intuitive ways. He skillfully interweaves his knowledge of history, genetics, and medicine not only as they relate to specific medical conditions but also in a way that addresses important challenges of modern society and our future evolution.

In the most general terms, Dr. Moalem's description of the human body and its complexity left me in awe of how far we have come in our understanding of biology and medicine, while also being reminded that the road to understanding ourselves is still wide open with much more to learn in the decades, and even centuries, to come. It is a fantastic journey on which he leads us and Dr. Moalem is a kind, knowledgeable, humorous, and helpful guide.

--This text refers to the Hardcover edition.