USA weightlifter Katherine Nye is a world champion. But her successful 2019 coincided with a diagnosis with Bipolar II Disorder and mild ADHD. She speaks... lucidly about her mental health journey ahead of the 76 kg competition. And 100m sprinter Trayvon Bromell is aiming to be the fastest man in the world. He opens up about his inspirations - including a talk with the 'hip hop preacher' Eric Thomas.