This extended episode of What's Up Docs? features Chris and Xand van Tulleken's full live conversation with Professor Devi Sridhar at Hay Festival.

Going deeper than the main episode, they explore the tension between individual responsibility and structural change, and why asking "how do I stay healthy?" might be the wrong question altogether. Devi draws on her work across governments and health systems worldwide to examine what genuinely moves the needle on population health. Chris and Xand also ask how Devi's work shapes the way she lives, and what single policy change she'd make tomorrow if she could.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you can email us at [email protected].

Presenters: Drs Chris and Xand van Tulleken

Guest: Professor Devi SridharProducer: Maia Miller-LewisExecutive Producer: Rami TzabarEditor: Jo RowntreeResearcher: Grace RevillTech Lead: Reuben HuxtableVideo Producer: Leon GowerDigital Lead: Richard BerryComposer: Phoebe McFarlaneSound Design: Melvin Rickarby

At the BBC:

Assistant Commissioner: Greg SmithCommissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.