Here is a great idea! At a primary care clinic in Wisconsin patients and their families are invited to join the clinic staff to cook meals and exercise together to stimulate lifestyle change. Spouses and children get excited about supporting changes for the whole family. Doctors and staff follow up on the phone with families, asking questions like "what's working, what's not, and how can we help you?"
PositiveTip: Encourage your physician to model good behavior for their patients! You could do the same for your friends.