On this week's episode, we are joined by the WHO's Prof Fiona Bull and Dr Juana Willumsen to launch the new WHO 2020 Guidelines on Physical Activity and Sedentary Behaviour. In this 20-minute podcast, Prof Bull and Dr Willumsen discuss the new global recommendations in depth, explain what has changed since the 2010 guidelines, and outline the next steps forward to creating more active people for a healthier world.