Some mornings there’s nothing more horrifying than an alarm blaring in your ear. You’ve dreaded it since your head hit the pillow: That onus to stagger into sneakers and punish yourself until the time’s up, because then you can relax and know that you’re sticking to the Schedule. You hate that alarm, but that’s the cost of being better, right? Right? We live in a workout culture defined by the need for “cleansing,” where in order to feel good about your body you first have to rid it of all its accumulated gunk. The punishment of strict diet and painful, efficient exercise is part of this purge. It’s tough not to want to get it over with as soon as possible, with your reward being to …