It originates in the mind but it
affects the
body too, and it can be one of the most difficult things to overcome. I know, because I have been there. My case wasn't as extreme as many, but I have restricted my calories and lost a lot of weight in a short amount of time. In fact, it was during that period that my heart issues started. I would get flutters and arrhthymias and all sorts of scary stuff. It was during recovery, however, that my troubles were at their worst.