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6

Assuming no underlying health problems and similar muscle stores, the obese person would survive significantly longer. When eating normally, the body gets most of its energy from free glucose and glycogen stores. After a day or two of no food intake, the body will switch to get most of its energy from the breakdown of fat tissue. Some cell types can't ...


2

Yes ... unless the fit person uses their advantage to kill and eat the other. This is probably the evolutionary cause of obesity: if you have an irregular food supply, it is sensible to build up a stock, either externally stored food or internally stored fat. This gave us physiology, and preferences, that work less well in rich countries, where you are ...


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