Health21 is the World Health Organization (WHO) European Region's policy framework for the 21st century, focusing on achieving "health for all" through 21 specific targets, building on past successes, and addressing new challenges like poverty and social cohesion, emphasizing equity and participation for holistic health. It provides a strategic guide for countries to develop national health plans, aiming to improve health across the lifespan by promoting well-being and reducing disease, with key principles including health as a right, equity, and solidarity