According to the World Health Organization (WHO), health promotion "enables people to increase control over their own health. It covers a wide range of social and environmental interventions that are designed to benefit and protect individual people’s health and quality of life by addressing and preventing the root causes of ill health, not just focusing on treatment and cure." As such, health promotion has long been a central part of nursing practice. Increasingly, nurses have needed to adopt an active role in promoting the health of individuals, families, communities, and nations.