“Our body is like a machine. If we constantly run the machinery at high speed, it will wear out faster. Since animals with slower metabolic rates live longer, eating more calories, which drives up our metabolic rate, will cause us only to age faster. Contrary to what you may have heard and read in the past, our goal should be the opposite: to eat less, only as much as we need to maintain a slim and muscular weight, and no more, so as to keep our metabolic rate relatively slow.”
