Anxiety is characterized by feelings of fear, dread, and uneasiness. It may cause you to sweat, feel agitated and tense, and have a racing heart. It could be a normal stress reaction. You may experience anxiety when confronted with a difficult problem at work, before taking a test, or before making an important decision. Difficult childhood, adolescent, or adult experiences are common triggers for anxiety disorders.
Fear is an intensely unpleasant emotion experienced in response to the perception or recognition of a danger or threat. Fear causes physiological changes, which can result in behavioral responses such as mounting an aggressive response or fleeing the threat. Fear in humans can occur in response to a current stimulus or in anticipation or expectation of a future threat perceived as a risk to oneself. The fear response is triggered by the perception of danger, which leads to confrontation with or escape from/avoidance of the threat (also known as the fight-or-flight response), which can result in a freeze response or paralysis in extreme cases of fear (horror and terror).
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