Deaf Weight Wise 2.0: A Healthy Lifestyle Intervention With Deaf Adults Who Are Overweight or Obese

The purpose of the Deaf Weight Wise 2.0 (DWW 2.0) study is to test an evidence-based, comprehensive program to modify obesity-related health behaviors with Deaf people ages 21 to 70 who use American Sign Language (ASL) as their primary language. Participants will be randomized to one of four arms: immediate intervention vs. intervention delayed one year, and in-person group intervention vs. individual intervention delivered via videophone. The investigators' primary hypothesis is that participants in the immediate DWW 2.0 intervention will increase their physical activity and reduce their caloric intake and body weight compared with those in the delayed intervention group (no intervention yet).