It's normal to be nervous before job interviews, but some job seekers go to extremes. They're so fearful and apprehensive that they become tongue-tied, talk too much or say the wrong things.
Most experts agree that a manageable level of stress can actually improve interview performance.
But if your blood pressure rises too much and your palms become too clammy, you need to control your reactions. The key to calmness is learning not to exaggerate an interview's importance. Lowering the stakes can reduce your stress level considerably. In contrast, if you believe that you must succeed at all costs, your tension level will soar. You'll be a self-conscious spectator of your behavior, watching and judging every word during the meeting.