Fasting requires that your internal organs are strong and healthy enough to remove the waste broken up during a fast, and your fluid systems have minimal obstructions for also removing waste. Stories of folks losing hair or going into organ failure as a result of a fast are those that failed the requirements above. Fasting has been touted by many ancient to older texts; however the species has gone through serious degeneration the past 3 generations. It’s only an effective method for some and no longer a cure all.