The Community Health Advocate fills a number of interrelated roles:
Since each CHA brings his or her own set of particular strengths to the program, not every advocate will fill every role. Some advocates will be natural public speakers, for instance. They may be more comfortable leading a discussion about a disease. Another advocate may have a gift for planning and organization, in which case he may be asked to put together a food drive for a local church. Each advocate will be asked to do an honest self-assessment of his or her strengths, interests, and abilities, and will be matched with tasks for which he or she is best suited.
A useful way to think of the work encompassed by the various roles of the CHA is in the acronym AIM, which stands for Advocate, Inform, and Motivate. In general, everything a CHA might do in that capacity is in some way advocating for community health, informing people about diseases or disparities in health, or motivating community members to take action to become healthier.