I'm sorry to hear about that woman. I agree anorexia can be really dreadful. My best friend in high school was down to 88 punds and had to be admitted to a hospital (luckily she's normal now) But, from a societal perspective I'm guessing the number of obese people in this country outweighs (pardon the pun) the anorexics 1000 to 1.
Btw, I'm not convinced those actresses are unhealthy. Some people are just smalled boned, or like SJP, former dancers. I once had this annoying co-worker follow me to the bathroom a lot. I finally asked er what was up and she told me she was worried I was a bullemic. I asked her if she'd ever noticed the grande cups of Starbucks on my desk that I drink 2 of per day (but how creepy is it to have your colleagues monitoring your peeing!?)