胃和肌肉一样，也需要时间休息，为下一次进食做准备。如果老是在吃的话，那胃就会疲倦，人也会感到疲劳。
Like a muscle, it needs time to recover and prepare itself for the next food intake, but if it's constant, it'll get tired and that's when you'll feel tired too.
我不是真的身体疲劳了，更多的是精神上疲倦了。
I'm not really physically tired; I'm more fatigued mentally.
当然，你也可以因为其他原因感到疲倦或疲劳。你怎么能分辨与心脏病有关的疲劳和其他类型的疲劳？
Of course, you can also feel tired or fatigued for other reasons. How can you tell heart-related fatigue from other types of fatigue?
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