Good Morning Britain returned to TV screens with a new episode on Tuesday (26 August) morning, fronted by Richard Madeley and Charlotte Hawkins. The presenting duo brought ITV viewers all of the latest headlines and were also joined by Olympian Iwan Thomas for a live interview following the release of his autobiography, Brutal. During the chat, Iwan spoke about his incredible sprinting career and the tough times he's endured over the years, especially after struggling with injuries . "It was therapeutic and quite painful, at times, as well," he said about the process of writing his autobiography. "You mentioned my mental health, I'm very brutally honest in that book about [how] on the one hand sport has given me a wonderful way of life and I absolutely owe it everything, but it was also a thing that mentally and physically broke me." Iwan's career saw him represent Great Britain and Northern Ireland at the Olympic Games in the 400 metres. He won silver at the 1996 Olympics in Atlanta and is also a former European, Commonwealth Games, and World 4 x 400 metres relay champion. He suffered injuries throughout the course of his career, including a stress fracture to his ankle, which required surgery, as well as damage to his Achilles tendon. He was ruled out of the 2004 Olympics due to injury, and missed out on competing at the 2006 Commonwealth Games also due to an injury. Speaking about how difficult this was as a young athlete, Iwan admitted he'd felt like he was "losing" his identity as he struggled with knowing what to do without sport. "I was very open, and it was publicised that it physically broke me. My career was cut short because of injuries. "But, I kept to myself the dark side and how that made me feel inside. Losing my identity, not knowing what I was going to do," Iwan said on GMB. He went on to add, "By the time I was 24, I think I had a medal from every single major championship. By the time I was 25, my career was on the way down because of injuries. "That's a young age to worry about what you're going to do for the rest of your life." Good Morning Britain airs on weekdays at 6am on ITV1 and ITVX.