Why is exercise so boring?

Exercise is so so boring..... I regularly go out running but if I dont have music playing I quickly get bored quite quickly.... and this makes me give up a lot quicker I think my problem is focus as if my focus goes I give up and music helps me to stay motivated and focused..... rather than bored... I dont even need to be tired if my brain gives up then I give up even if my body hasn't which I think makes me a sloth maybe? Anyway has anyone got any tips on how to power through exercise without music?.... is it just determination?