Fiona Bull is a distinguished Swiss policy leader serving as the Head of Unit for Physical Activity in the Department of Health Promotion at the World Health Organization. With a robust background in public health, she focuses on promoting physical activity as a vital component of health and well-being. Her work involves developing global strategies and guidelines to encourage active lifestyles and reduce the burden of non-communicable diseases. Fiona is dedicated to fostering collaboration among governments, organizations, and communities to create environments that support physical activity for all.