Like good health and youth, most of us take our locks for granted -- that is, until they're gone. For many people, a hair transplant can help bring back what looks like a full -- or at least a fuller -- head of hair. If thinning up top or going bald really bothers you, the procedure can be one way to feel more confident about your looks. But first talk with your doctor about what you can expect during and after the surgery. What Is a Hair Transplant? It's a type of surgery that moves...