Tiffiny Hall is a one-woman fitness business, with over 20 years’ experience as a personal trainer and coach. She rose to prominence on TV as a Gladiator and a trainer on The Biggest Loser Australia and is now transforming devotees – from athletes to new moms – via her health and fitness app TIFFXO. She is a mother, mentor and magnate. One of the most qualified martial artists in the world for her age, she’s a 6th Dan Taekwondo black belt and is an expert trainer and presenter on Chris Hemsworth’s app, Centr. In publishing nine health and fitness books, a thriving fitness empire and a successful podcast with over 4 million downloads, Tiffiny has helped thousands of Aussies change not just their bodies, but their lives. Tiffiny, along with her husband, Ed Kavalee, co-wrote a picture book inspired by their son, Arnold. A reflection of their first year as new parents, A Fist Time for Everything was published in late 2019.