A lot of trainers encourage you to "push through" pain that you feel- yet also say that you should listen to your body. Even with something less extreme than pain, like fatigue, these messages make it hard for me to know whether I should stop or continue.
Ever since I was a kid PE teachers and similar individuals have implied that I was lazy if I stopped before finishing. I took that to heart, and now I feel guilty if I can't keep up with a program. But supposedly I should be listening to my body's cues.
How do you judge when to listen to or push through pain/fatigue/other cues?