Is There a Daydreaming Mode in Your Brain?

Daydreaming mode, what neuroscientists call the default mode network, turns out to be restorative. It is like hitting the reset button in your brain. A lot of creativity occurs during this daydreaming mode. So there's something else that happens during the day that seems to take away from our productivity. We make all kinds of little decisions and then when it comes time for us to make big decisions we're too tired.