1. Between 30 and 70 years old 2. Nonsmoker 3. Generally in good health 4. Able to speak and read English 5. Willing to provide informed consent 6. Patient Health Questionnaire-9 (PHQ-9) score greater than 5 (minimal depression) but less than 25 (severe depression) 7. Hemoglobin A1c values between 5.6%-6.4% (inclusive) 9. Able to attend 2 study visits at Duke University Medical Center 10. Able to attend 22 small group education sessions 11. Able to participate in 10 telephonic support sessions