Our minds love to be busy, and the busier our lives are, the busier our minds are. How often have you driven a familiar route and arrived at your destination with only the haziest memory of what happened on the journey? Luckily, many of our daily activities don’t require much thought. It would be exhausting if we had to keep telling ourselves to breathe, for example, and we wouldn’t have much headspace to carry out other activities. But you can have too much of a good thing. Perhaps we would be less exhausted if we occasionally did tell ourselves to breathe.