DEAR DOCTOR K: I've gained several pounds since getting married. My husband thinks he is supportive of my weight-loss efforts, but he doesn't exercise or make healthy food choices himself. How can I lose weight without my husband's support?
DEAR READER: Each of us is the person most responsible for living a healthy lifestyle. But we're not islands when it comes to our weight, and family and friends can profoundly influence what we do. That's the message in the important new book "Thinfluence," written by my Harvard colleagues Dr. Walter Willett and Dr. Malissa Wood, with Dan Childs.