Based on the context and the answer, generate a question. 

Context: I am sure somehow that they did not need to walk this loop in order to give their bodies much needed exercise . I am sure their life was full of exertions that filled the need to burn a few calories . My heart is full of thanksgiving that I am allowed to spend my exercise time enjoying such beautiful scenery all around me . I am indeed even thankful for the big hill that seems to never end .

Answer:

That they feel they need to exercise



What may be true about the narrator ?