'Doing press-ups in my prison cell launched my successful business career'

LJ Flanders was sent to prison when he was 21 for his role in a fight but refused to let this mistake define him.

Instead, he chose to turn his life around during those 16 months, using the four walls of his prison cell as inspiration for his now successful business.

LJ, now 32, created the blueprint for his exercise book, Cell Workout, while he was in Pentonville prison in London.