She's obviously incredibly disciplined and I truly admire her drive and achievements, but working out for two hours a day, seven days a week is totally unnecessary (assuming she means intensive exercise rather than stretching or something) unless you are actually in training as an athlete. It can even be counter-productive to omit rest days because the physical stress will decrease your ability to recover and get the full health and weight benefit, as well as increasing risk of injury, decreasing immunity etc. It would be different if she was doing something sporty because she loved the experience (as many of our members do), but it sounds more like she does this specifically to keep her figure, which is really gratuitous; you can easily be skinny and healthy in half that amount of time if you're smart about your workouts and balance different types of training - I find the extreme exercising a bit sad even though the commitment is impressive