Notes
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Context switching happens when you jump between tasks.
- You're on call, but at the same time, you're working on a document.
 - You're watching a movie and checking your mobile.
 - You're writing an email and talking if your coworker.
 
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It kills productivity.
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It happens when you do multitasking.
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Each extra task or "context" you switch eats up 20-80% of your overall productivity.