Make Better Choices - 2 (MBC2) Study

The majority of people eat a poor quality diet, are physically inactive, don't sleep enough, and have high stress levels. The Make Better Choices - 2 study may help people to change these unhealthy ways. Read more here to learn how!


Let us help you take charge of your well-being this year! We are recruiting people to participate in a 9-month healthy lifestyle intervention. Do you have a diet low in fruits and vegetables, low physical activity, high recreational "screen time", insufficient sleep, and/or high levels of stress? Over time these behaviors place people at risk for developing problems including diabetes, heart disease, and cancer. The purpose of this study is to test whether a behavioral intervention supported by technology can help people to improve their overall well-being.

All MBC2 participants will receive personalized telephone coaching and smartphone technology that is customized to help people make better choices and improve health. If you are eligible to participate, you will be assigned randomly to 1 of 3 possible treatments that address different combinations of lifestyle behaviors. This includes:

  • Eating more fruits and vegetables
  • Accumulating less leisure "screen time"
  • Being more physically active
  • Getting more sleep
  • Practicing relaxation
  • Reducing stress levels

  • Participants are asked to attend a total of 4 in-person sessions, which will include providing 4 blood samples. In some treatments, participants change three behaviors at once. In others they start with two behaviors before adding a third behavior. You will also have the chance to earn money for achieving diet and activity goals. All appointments will be held on Northwestern University's Chicago campus at 680 N. Lake Shore Drive. Chicago, IL 60611. Free parking and compensation will be given for attending each in-person visit.

    You may be eligible to participate in MBC2 if you:

  • are between 18-65 years old
  • will reside in the Chicagoland area for the next 9-months
  • are not currently pregnant, trying to become pregnant, or breastfeeding
  • are willing to make changes in eating, activity, sleep and/or stress levels
  • are willing to track your daily lifestyle behaviors using a smartphone for 9-months

  • Additional criteria about your health will be reviewed via phone and in-person screening visits to determine your eligibility.

    If you have any questions or concerns, please contact us at: or 708-232-8585.