The UK’s favourite fitness coach is back with series three of his podcast. This summer, Joe is speaking to inspirational friends and some of his favourite people to ask them what they do to keep themselves feeling mentally and physically strong. Joe's guest this week is presenter and author Katie Piper. Katie was the victim of an acid attack in 2008 which left her with life-changing injuries. In the years that followed Katie has spoken and written about her experiences, and established a foundation to help other people who have suffered similar injuries. Katie talks to Joe about how she recovered her mental and physical health after the attack, and the part exercise played in her recovery. They discuss how she views and preserves her self-confidence today, and why they are both so honest about themselves on social media. They talk about the challenges of balancing work with parenting, and Katie explains how you can be kind to yourself just by writing an email. This is sunshine in a podcast. Joe Wicks is here for you, and he won’t stop until you’re fit and happy. Producer: Toby Field Editor: Dimitri Houtart A BBC Audio Bristol production for Radio 4