In your life, fifty per cent is commonplace. It's not one aspect that we seem to want to take into account, but it's true: affecting 1/2 the time we choose to pay awake, we keep on appearing to be on autopilot, mindlessly reiterating similar behavior and therefore similar thoughts in a similar context.
There's a set routine we keep following once these patterns are formed. Starts with a cue; the stomach growls at an hour. And you follow along mindlessly in keeping with your routine; you walk to the dining room, you get a cookie.
infographic by: www.12keysrehab.com