Anxiety is when the fear response goes haywire. You may feel afraid all the time, overreact, or respond to triggers that don’t actually pose a threat. While fear is something that people experience regularly, anxiety should not be a part of your day-to-day life (easier said than done for most). Fear is an emotion, and anxiety is a mental health disorder. The symptoms of fear go away on their own when the threat dissipates. Symptoms of anxiety, however, persist and often must be managed with medication and therapy.