But in all my years of physical activity, I've never once looked at my reflection and thought, "Yup, that's the face and body of a fitness model." I struggled to accept what I saw in the mirror ...

They are the queens of health and fitness, creating a highly-successful wellness app which now boasts more than 2.5 million users across 120 countries.

This renowned trainer, who has also worked with other celebrities like Kim Kardashian and Charlize Theron, has revealed a full-body workout you can do at home. Kendall Jenner's 6-Exercise Routine ...