Bill has the uncanny knack of seemingly turning his hand to any subject, not just travelogs; and owning it. This is a book I just couldn't put down. As I moved through the chapters I just wanted to know more. It didn't matter that the author was not a doctor of world recognition or some medical scientist that had made some huge discovery leading to a cure for some horrible disease. It's Bill Bryson at his very best, telling a story about The Body, your body!