endorphins make you happy, and happy people just don't stab their coworkers. They just don't.
The cold progresses into the sniffling and gross phase, but I haven't stopped working out (Mean Girls was on as I was doing my 60 minutes on the elliptical this evening - WIN!). This is 97% mood related, as work blows and so if I didn't do something exercise-y, I think I'd go stir crazy. I'm going to stick with my desperate hope that sleeping a lot will be enough to kick this thing.