Savage world of ballroom dancing - 'extreme diets, cruel instructors and abuse'
![Savage world of ballroom dancing - 'extreme diets, cruel instructors and abuse'](https://i2-prod.mirror.co.uk/incoming/article33330776.ece/ALTERNATES/s615/2_Couple-Dancing-Tango.jpg)
As Strictly Come Dancing grapples with a huge crisis, we look at the gruelling lives of professional ballroom dancers and the tough conditions they face when starting out