Your doc knows you're killing yourself. The data brokers told her

You may soon get a call from your doctor if you've let your gym membership lapse, made a habit of picking up candy bars at the check-out counter or begin shopping at plus-sized stores. That's because some hospitals are starting to use detailed consumer data gleaned from data brokers to create profiles on current and potential patients to identify those most likely to get sick, so the hospitals can intervene before they do.