每天早上3点来一个汉堡包也有可能改变生理节奏，最终可能导致代谢失调和肥胖症。

What could also contribute to metabolic disorders and obesity is that the body's rhythm may be off kilter to properly break down a hamburger at 3 a.m.

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不管你的年龄多大，你都可以在你目前的生活方式上做出一些重要的改变，这样你在生理和心理上都会感觉更好。

Regardless of your age, you can make a number of important changes in your current lifestyle that will help you feel better physically and mentally.

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不过，有些物种可以通过特殊的途径—改变行为模式或生理过程，使自己的寿命突破体形的约束。

However, some species can take special steps, either by changing their behaviour or physiology to grow older than they might otherwise.

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