> The more interesting part of this to my eyes was the material difference between 24 hour and 72 hour fasting in human chemotherapy patients, in that the former didn't do anything to the measure of immune cell populations and the latter did.
If you do zero-calorie fasting, there are some important changes around or after day 3. Hunger disappears. Metabolism is low, muscles are relaxed. The mind tends to more easily stay focused on a single topic. There's a sense of clarity and ease, and an odd kind of energy. It's quite a contrast with the increasingly frantic frustration prior to this time.
This is all from a subjective standpoint, of course, but it's well correlated by most people who have done it. It seems quite obvious that there are major changes around day 3. I'd love to see more data from studies.
If you do zero-calorie fasting, there are some important changes around or after day 3. Hunger disappears. Metabolism is low, muscles are relaxed. The mind tends to more easily stay focused on a single topic. There's a sense of clarity and ease, and an odd kind of energy. It's quite a contrast with the increasingly frantic frustration prior to this time.
This is all from a subjective standpoint, of course, but it's well correlated by most people who have done it. It seems quite obvious that there are major changes around day 3. I'd love to see more data from studies.