Anxiety is a continuing fear and the price paid for anticipating difficulties. It can become so severe that it interferes with the ability to cope. Like any other emotion, fear is a helpful response to an ordinary circumstance, but when it’s not possible or practical to fight or run away, the body’s reaction to danger seems exaggerated and prolonged. Panic occurs when danger seems imminent, overwhelming, and unavoidable. In the case of a soldier responding to combat, it’s more the situation itself that is abnormal than the individual’s emotional response to it. However, when the circumstances are ordinary and the person’s response is abnormal, the anxious feeling can become a panic disorder.
Read the entire article here: The Evolution of an Anxious Feeling