Group and organizational cultures play an important role in helping people to adopt healthier lifestyles. Culture can be assessed by looking at social expectations for behavior, called group norms. Cultural norms can be changed to support healthy lifestyles through a systematic and participatory process. Such a change effort would modify: (1) modeling behavior; (2) rewards; (3) confrontation; (4) training; (5) orientation; (6) relationship formation; (7) resource allocation; and (8) communication. In addition, a systematic culture change process would introduce change on a number of levels through: (1) individual action plans; (2) work group or team efforts; (3) leadership development; and (4) organizational task forces. (Author)