To the go-getter, high-achieving, still very human performers out there, here's some simple math that might help you change the way you look at rest. The 42 percent rule is a theory that for high-performers sustaining balance and optimal levels of energy, focus, and production, 42% of your time is meant to be at rest. When you don't get this, the risk for burnout sky-rockets. This is a large chunk of time, however you look at it. That's ten hours a day, seventy hours a week,