Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Anxiety Disorders ?
    ### Response:
    Occasional anxiety is a normal part of life. You might feel anxious when faced with a problem at work, before taking a test, or making an important decision. However, anxiety disorders involve more than temporary worry or fear. For a person with an anxiety disorder, the anxiety does not go away and can get worse over time.
    