Daniel E. Lieberman

Is Your Chair Killing You?

<p>For tens of thousands of years the reality of human existence was discomfort. It is only in recent years—evolutionary speaking—that <i>homo sapiens </i>have been able to kick back and relax. In an excerpt from his new book, <i><a href="http://www.amazon.com/The-Story-Human-Body-Evolution/dp/0307379418" target="_blank">The Story of the Human Body: Evolution, Health, and Disease</a></i>, evolutionary biologist Daniel Lieberman explains why this new phenomenon of being comfortable is hazardous to your health.</p>