Multitasking: Why It Doesn’t Work and What You Can Do About It

Many people believe themselves to be multitasking masters, but could it all be in their heads? Learn why multitasking is hurting your brain.

Our Brains weren’t Built to Multitask

Our brains are designed to focus on one thing at a time, and bombarding them with information only slows them down.

MIT neuroscientist Earl Miller notes that our brains are “not wired to multitask well… when people think they’re multitasking, they’re actually just switching from one task to another very rapidly. And every time they do, there’s a cognitive cost.”

Negative Effects of Multitasking

This constant task-switching encourages bad brain habits. When we complete a tiny task (sending an email, answering a text message, posting a tweet), we are hit with a dollop of dopamine, our reward hormone. Our brains love that dopamine, and so we’re encouraged to keep switching between small mini-tasks that give us instant gratification.

This creates a dangerous feedback loop that makes us feel like we’re accomplishing a ton, when we’re really not doing much at all (or at least nothing requiring much critical thinking). In fact, some even refer to email/Twitter/Facebook-checking as a neural addiction.

Multitasking Lowers your Work Quality and Efficiency

Multitasking makes it more difficult to organize thoughts and filter out irrelevant information, and it reduces the efficiency and quality of our work.

A study at the University Of London showed that subjects who multitasked while performing cognitive tasks experienced significant IQ drops. In fact, the IQ drops were similar to what you see in individuals who skip a night of sleep or who smoke marijuana. Now that’s a terrifying thought.

Multitasking has also been found to increase production of cortisol, the stress hormone. Having our brain constantly shift gears pumps up stress and tires us out, leaving us feeling mentally exhausted (even when the work day has barely begun).
The biggest instigator of multitasking mayhem? Our inboxes. Some studies have shown that even the opportunity to multitask — such as knowledge of an unread email in your inbox — can reduce your effective IQ by 10 points! The constant thrill of a new bolded email in our inbox keeps us ever-distracted. A McKinsey Global Institute Study found that employees spend 28 percent of their workweek checking emails.

Email is problematic, but texting is even worse, demanding even more immediacy than email, having us check it more adamantly as a result.

Protect yourself from the multitasking mental massacre by establishing an email checking schedule. Commit yourself to checking emails only three times a day, (maybe when you get into work in the morning, at lunch time, and before leaving work at the end of the day). Turn off texting notifications and choose specific times to check your phone as well.

Multitasking Men have it the Worst

For men, multitasking can drop IQ as much as 15 points, essentially turning you into the cognitive equivalent of an 8-year-old. Don’t be surprised when you find yourself stocking up on pop rocks.

The Damage could be Permanent

New research suggests the possibility that cognitive damage associated with multi-tasking could be permanent.

A study from the University of Sussex (UK) ran MRI scans on the brains of individuals who spent time on multiple devices at once (texting while watching TV, for example). The MRI scans showed that subjects who multitasked more often had less brain density in the anterior cingulate cortex. That’s the area responsible for empathy and emotional control.

The one caveat is that research isn’t detailed enough to determine if multitasking is responsible for these affects, or if existing brain damage results in multitasking habits. Still, no matter how you spin it, multitasking is no good.

The lesson? Multitasking is not a skill to add to the resume, but rather a bad habit to put a stop to. Turn off notifications, create set email checking time slots throughout the day (rather than constant inbox refreshing), and put your mind to the task at hand.

Source: Inc.

Patty Block, President and Founder of The Block Group, established her company to advocate for women-owned businesses, helping them position their companies for strategic growth. From improving cash flow…. ​to increasing staff productivity…. ​to scaling for growth, these periods of transition — and so many more — provide both challenges and opportunities. Managed effectively, change can become a productive force for growth. The Block Group harnesses that potential​, turning roadblocks into building blocks for women-owned businesses​.

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