Comment by tlow

False premise. Fasting isn't forever, its for a set period of time. Running and fasting are very similar. When running you often feel the urge to stop and give up. You build up the strength over time to say no to that voice. Fasting is a method of short-term saying no to urges. As you learn to say no to that urge, you become better at saying no to that urge. A single prolonged fast can redefine ones relationship with eating. There are lots of reasons to eat, not all of them are the need for nutrition. There are lots of reasons to grab a phone, not all of them are necessary to function/social/work, yet many people feel the urge to pick up there phone 50+ times a day.