Health advocacy or health activism encompasses direct service to the individual or family as well as activities that promote health and access to health care in communities and the larger public. Advocates support and promote the rights of the patient in the health care arena, help build capacity to improve community health and enhance health policy initiatives focused on available, safe and quality care. Health advocates are best suited to address the challenge of patient-centered care in our complex healthcare system. The Institute of Medicine (IOM) defines patient-centered care as: Health care that establishes a partnership among practitioners, patients, and their families (when appropriate) to ensure that decisions respect patients’ wants, needs, and preferences and that patients have the education and support they need to make decisions and participate in their own care. Patient-centered care is also one of the overreaching goals of health advocacy, in addition to safer medical systems, and greater patient involvement in healthcare delivery and design. Patient representatives, ombudsmen, educators, care managers, patient navigators and health advisers are health advocates who work in direct patient care environments, including hospitals, community health centers, long term care facilities, patient services programs of non-profit organizations or in private, independent practice. They collaborate with other health care providers to mediate conflict and facilitate positive change, and as educators and health information specialists, advocates work to empower others. In the policy arenas health advocates work for positive change in the health care system, improved access to quality care, protection and enhancement of patient's rights from positions in government agencies, disease-specific voluntary associations, grassroots and national health policy organizations and the media. There may be a distinction between patient advocates, who work specifically with or on behalf of individual patients and families, or in disease-specific voluntary associations, and health advocates, whose work is more focused on communities, policies or the system as a whole. Often, however, the terms "patient advocate" and "health advocate" are used interchangeably Rapidly growing areas of health advocacy include advocates in clinical research settings, particularly those focused on protecting the human subjects of medical research, advocates in the many disease-specific associations, particularly those centered on genetic disorders or widespread chronic conditions, and advocates who serve clients in private practice, alone or in larger companies. History A separate and identifiable field of health advocacy grew out of the patient rights movement of the 1970s. This was clearly a period