Screening, health education focused on sexuality education and self-esteem, as well as self-help materials, are also used to strengthen awareness needed for behavioral changes. Volunteers and mentors can be recruited and trained to advance the program's objectives. For a community to effectively improve the health of its members, behavioral changes must be achieved and maintained. Changes can occur through implemented programs, policies and initiatives that aim to change attitudes, beliefs and social norms. Some aspects of the organizational infrastructure may need to be changed to impact desired outcomes. Community-level interventions include mass media campaigns, restaurant and supermarket nutrition labeling, partnerships with schools, church social service agencies, advocacy groups, and recreational facilities. For laws, public policies and local ordinances enacted to stigmatize behaviors, the community must be ready and capable of change. Therefore, it is necessary to incorporate multiple methods to address the relevant factors influencing behavioral changes. The scale of community intervention affects the time frame needed to influence and implement