The tendency for a body at rest to stay at rest, and for a body in motion to stay in motion. Two important states, to be sure. For me, I find myself bouncing between those two states from time to time, often as a result of some cycle I'm trying to break. Most of the time, that cycle for me starts with lack of sleep, and progresses into this weird state of limbo where I'm constantly feeling unhealthy. The last time I felt I totally got away from it was back in May, back when I was going to the gym routinely and eating meals at home the majority of the time. I'm close to getting back there, but ...