There’s no question the U.S. has a physician supply problem. The Association of American Medical Colleges estimates that the nation will be short 86,000 doctors by 2036.

Strict no-buy challenges can backfire. What’s more likely to work: a series of small changes. Here are a few ideas.

Picture your typical morning. You wake up, maybe scroll through your phone, feel kind of bad about that, get up and brush your teeth. All this is a collection of habits. Some are healthy habits, some ...