We all know the feeling. Spend all day at work thinking about that planned gym trip this evening - how for 30 precious minutes, you'll stairmaster, swim, cycle or lift your way to a well-earned respite from the daily grind. You remind yourself that work is not the only source of fulfillment in life - that your body deserves the same attention. Staring at your keyboard, you imagine the bliss of entering into an anaerobic state, where everything is beautiful and nothing is scary, where the veritable mountains that life throws your way can be scaled with energy left to spare.
Yet when you actually get home, you find that the TV has been turned on. Did you do that? No no, you couldn't have. And yet now you're sitting down, gradually muting the protests of the elliptical fiend in your head. Your workday was strenuous enough as is - why make it more taxing? Wouldn't it be borderline masochistic to work out at this point? You have your sanity to consider. Another evening of relaxation isn't going to hurt anyone. You let the television lull you into a state of utter complacency, and soon you are asleep.