Similarities and Differences of Normality, Stress, Anxiety and Arousal

Module 12 Discussion - Normality, Anxiety, and Arousal
Describe a completely "normal" person as accurately as possible. You can constrain your answer to a description of a "normal" U.S. citizen, or whatever culture you're most familiar with. The person you're describing should be hypothetical - normal in every way. What does it mean to be "normal"?
Then, discuss the differences between stress, anxiety, and arousal. Make sure that you understand the definitions of each of these three constructs, and how they relate to one another, because this part of the post will be graded for accuracy. Are they the same thing, and if not, do they have the same causes? How do these different but related constructs exist in the completely "normal" person you described above?
Make sure to address each of the three constructs at multiple levels of analysis - discuss cognitive, biological, and behavioral similarities and differences. As always, thoroughly describe your response to each question in this prompt for full credit, and make sure to synthesize information from past modules in your post - for all phenomena covered in previous modules that you reference, make sure to use concepts and terminology from class to describe each.