Read the following context and answer the question.
Context: Guess what , I ' m not in shape , and I walked there and back . It was 5:30 by the time I got to campus , and after seven by the time I got back . Really , when I did finally get to campus , I did n't do anything because I do n't know where anything is , and I was pretty darn exhausted . All I did on campus was use a drinking fountain and call my brother and rest on a lawn .
Question: Why is the narrator so tired ?
Answer:


They are not in great physical condition .