Just like the well-known, best-selling American truck, your body is built to last. But if it's built to last, why do so many people have serious problems with their bodies? If a human body is built to last, why does it seem to break down so easily? The pharmaceutical industry earns billions of dollars

From biking and hiking to walking and jogging, today's parents are keeping fit and bonding with their babies in the process. With an array of products unheard of a generation ago— like baby carriers, joggers and trailers— even the tiniest among us are enjoying the great outdoors. But while these