I. Anxiety is an apprehension or vague fear that arises from the arousal of the limbic system in the brain. It can be trait anxiety as a permanent predisposition or state anxiety in response to a specific situation. II. Language anxiety is a feeling of tension and apprehension directly related to learning a second language. It can negatively impact achievement and is situation-specific anxiety aroused in language learning contexts like speaking. III. Sources of language anxiety include communication apprehension, fear of tests, and fear of negative evaluation. Teachers can help reduce classroom language anxiety by maintaining equilibrium, encouraging positive thinking, overlooking mistakes, and creating a stress-free environment.