first of all you need to explain to your friend how dangerous this is... not only that but this is bullimia i went htrough it and its hard to stop after you start because your self image never changes and not only that if your friend is doing this to get skinny then its not gonna work i read somewhere that bulemia kept your weight at the same place and that it doesnt make you any skinnier. anyways try to help lose weight the safe way and if it doesnt work out you have to talk to an adult asap! good luck! dont let your friend ruin herself like i did because its not an over night thing to stop and when you finally do you're either dead or you gain a lot of weight. if she needs someone to talk to she or you can email me at cheerlm@optonline.net no problem