What really causes depression and anxiety – and how can we really solve them? Award-winning journalist Johann Hari speaks about his book 'Lost Connections: Uncovering the Real Causes of Depression – and the Unexpected Solutions'

Johann is joined by Sir Sam Everington (GP at the Bromley by Bow Centre) Dr Geraldine Strathdee OBE (National Clinical Director for Mental Health, NHS England) and IPPR's Harry Quilter-Pinner