Organizing is about being more efficient: doing things the right way; and equally about being more effective: doing the right things. Schedules, lists, and routines play a big part in this. Sometimes, just thinking about all the things we have to do give us that feeling of “My Brain Is Full.”
When that happens, we increase our effectiveness by taking a break. While we relax, our brain has a chance to look after its own organizing and housekeeping. It solves problems, sorts data, memorizes new information, rehearses skills, and encodes social behavior. It replenishes the stores of attention and motivation, and encourages productivity and creativity.
In short, it does all the behind-the scenes work that supports the high-performance times.
Read all about it in the Scientific American:
http://www.scientificamerican.com/article.cfm?id=mental-downtime&WT.mc_id=SA_CAT_MB_20131016