I was wondering what has been everyone's experience with fasts? I have done several 3-5 day fast before. I am trying now to build up to a 10 day fast. I am starting another fast today, after a 4 day fast ending last Thursday. I find the headaches, aches & pains and salt craving unbearable sometimes. I would love to go for a 21-30 day fast, but I don't know if I'm healthy enough right now. I will let my body tell me when its ready. I also have read, "Rational Fasting" by Arnold Ehret, and he recommends frequent shorter fasts instead of longer fast. I would suggest anyone wanting it fast read up on as much information as they can get there hands on.