with what I suspect must be an eating disorder putting herself through a punishing work out at the gym today. I felt so terrible seeing her that I had a strong urge to going over and asking her to please stop.
Just to be clear this woman was not simply naturally skinny she was very very underweight with the white downy hair people get when they don't eat. She couldn't have weighed much more than 5 stone at a guess.
I just felt I wanted to step in and stop her exercising but obviously it is none of my business and I am not qualified to help so I didn't. However, I feel strangely guilty about watching someone so dangerously under weight doing exercise for such a long time.