– Why is it that humans can survive for weeks without food, but if the body goes without food for just a few hours people start to feel uncomfortably hungry?
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I think when u go more than a few days without eating your metabolic process changes up and your body goes into a different mode kinda where it burns calories from fat and reserves in the body instead of using gi tract for calorie source. That’s probably a terrible half wrong explanation but it’s the best I can offer I’m sure someone with a science background will have an actual science name for it. But just FYI. I’ve gone almost 2 weeks without eating 8 or 9 of those days I was on iv fluids no water……I was hungry AF the entire time it was miserable at one point I dropped 6.7 lbs over a 24 hr period. Doing nothing but laying in hospitals bed knocked out most of the time.
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