Imperian has hundreds of help files to help you learn more about the game and how to play.
4.13 Breathing
While generally you can move around Imperian very quickly (if you know your way), some afflictions may cause you to quickly run out of breath, and even lose health, if you move about too quickly. When you see messages telling you that you are breathing lightly, breathing heavily, or so on, you will know that you've been afflicted with one of these afflictions, like asthma.
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