Occupational health nursing is a branch of nursing that focuses on providing and delivering health and safety programs and services to individuals, groups, and communities. The focus of the profession is on health promotion, maintenance, and restoration, as well as illness and injury prevention and protection against work-related and environmental dangers. Occupational health nurses (OHNs) attempt to combine health and business knowledge to strike a balance between safe and healthy environments and a "healthy" bottom line. Occupational health nursing is available in nearly every major healthcare facility. Occupational health nurses are also involved in the implementation of research initiatives and the integration of evidence-based practice into clinical settings.