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Multitasking
Multitasking
SHUTTERSTOCK

You may take pride in your ability to do five tasks at once, but there’s a hitch: you’re not actually doing five tasks at once – you’re switching back and forth between them. All of that re-focusing uses up the oxygenated glucose in your brain, according to Science Alert,  making you tired and less capable of tackling your to-do list. To counteract the issue, be more methodical about how you approach work by focusing on one thing at a time and scheduling regular 15-minute breaks to give your brain some much-needed R&R.