Andy Friscella's 75HARD Challenge is a mental toughness *not* a fitness program that has taken over the internet... Its rules promise that it will transform your life - but it has also come under fire for being unsustainable and unrealistic?

How do we come to a verdict?

Interview someone that has completed the challenge for the 4th time, Jacqueline Christodoulou!

Special thanks to Jacqui for her time and thoughts today.