just read an article where it talked about how doodling, which is often noted as a sign of a wandering mind, may actually help us to absorb information. in a study published in applied cognitive psychology,jackie andrade at britain’s university of plymouth played a rambling voice-mail message to 40 people, half of whom were given shapes to fill in as they listened. the result was astonishing. the doodlers recalled 29% more of the message than those who just listened. andrade says that idle scribbling uses just enough cognitive bandwidth to prevent daydreaming, so it may help us to stay focused.