Dr Ritu Sadana is a global leader in public health who has shaped WHO’s strategies on ageing, equity and the life course. She currently leads WHO’s coordination of the UN Decade of Healthy Ageing and work on older people. She also leads efforts to align services and systems, and evidence needed, to connect optimal development and healthy ageing. She is the lead author of the first WHO Framework to Implement a Life Course Approach in Practice – a forward-looking initiative that bridges child, adolescent, adult and older people’s health to improve health trajectories and reduce inequalities. As Head of Ageing and Health at WHO, Dr Sadana spearheaded the first WHO Global Strategy on Ageing and Health, conceived the United Nations Decade of Healthy Ageing 2021–2030—endorsed by the UN General Assembly—and led development of the Decade of Healthy Ageing: Baseline Report, documenting strategies to accelerate country-level progress.