The ONE Thing: The Surprisingly Simple Truth About Extraordinary Results

by Gary Keller

Here’s the short list of how multitasking short-circuits us: There is just so much brain capability at any one time. Divide it up as much as you want, but you’ll pay a price in time and effectiveness. The more time you spend switched to another task, the less likely you are to get back to your original task. This is how loose ends pile up. Bounce between one activity and another and you lose time as your brain reorients to the new task. Those milliseconds add up. Researchers estimate we lose 28 percent of an average workday to multitasking ineffectiveness. Chronic multitaskers develop a distorted sense of how long it takes to do things. They almost always believe tasks take longer to complete than is actually required. Multitaskers make more mistakes than non-multitaskers. They often make poorer decisions because they favor new information over old, even if the older information is more valuable. Multitaskers experience more life-reducing, happiness-squelching stress.