Merck Manual

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How Anxiety Affects Performance
PSY_anxiety_performance
How Anxiety Affects Performance

    The effects of anxiety on performance can be shown on a curve. As the level of anxiety increases, performance efficiency increases proportionately, but only up to a point. As anxiety increases further, performance efficiency decreases. Before the peak of the curve, anxiety is considered adaptive because it helps people prepare for a crisis and improve their functioning. Beyond the peak of the curve, anxiety is considered maladaptive because it produces distress and impairs functioning.