You may have heard that multitasking is bad for you, but new studies show that it kills your performance and may even damage your brain. Every time you multitask you are not just harming your performance in the moment; you may very well be damaging an area of your brain that’s critical to your future success at work…Travis Bradberry

Research conducted at Stanford University found that multitasking is less productive than doing a single thing at a time. The researchers found that people who are regularly bombarded with several streams of electronic information cannot pay attention, recall information or switch from one job to another as well as those who complete one task at a time.

The Stanford researchers compared groups of people based on their tendency to multitask and their belief that it helps their performance. They found that heavy multitaskers — those who multitask a lot and feel that it boosts their performance — were actually worse at multitasking than those who like to do a single thing at a time. The frequent multitaskers performed worse because they had more trouble organizing their thoughts and filtering out irrelevant information, and they were slower at switching from one task to another.

Brain damage from multitasking?..find out

It was long believed that cognitive impairment from multitasking was temporary, but new research suggests otherwise. Researchers at the University of Sussex in the UK compared the amount of time people spend on multiple devices (such as texting while watching TV) to MRI scans of their brains. They found that high multitaskers had less brain density in the anterior cingulate cortex, a region responsible for empathy as well as cognitive and emotional control.

While more research is needed to determine if multitasking is physically damaging the brain (versus existing brain damage that predisposes people to multitask), it’s clear that multitasking has negative effects.

Multitasking lowers IQ

Research also shows that, in addition to slowing you down, multitasking lowers your IQ. A study at the University of London found that participants who multitasked during cognitive tasks experienced IQ score declines that were similar to what they’d expect if they had smoked marijuana or stayed up all night. IQ drops of 15 points for multitasking men lowered their scores to the average range of an 8-year-old child.

https://www.toricity.com/education/smart-people-dont-multitask/

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