Answer: it's normal to feel hungry when you start a new exercise regimen or you increase your exercise frequency or intensity.

答案：当开始一种新的锻炼方法或增加锻炼频率或紧张程度时，有饥饿感是很正常的。

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The anterior and posterior cruciate ligaments are intact with normal signal intensity.

前，后十字韧带完好无损正常的信号强度。

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You are exercising at moderate intensity if you are breathing faster than normal but can still say a sentence or two out loud or sing a snatch of a favorite song.

如果呼吸比正常加快但是仍可大声说出一两句完整的句子或者唱一段歌曲那么你的运动量就适度。

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Intensity and duration of these feelings distinguish a normal level of stress from a psychological condition, Kleiman said.

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