The Habit You Don't Realize Is Hurting Your Productivity |
Understanding Attention
Find a therapist to help with ADHD
The human brain cannot truly multitask. Instead, it switches.
Attention residue is the lingering cognitive activation that remains after we shift from one task to another.
Productivity improves when we design our environment and workflow to align with cognitive reality.
Modern work culture has increasingly come to glorify multitasking. We make a habit of answering emails during meetings, checking messages while writing reports, and hopping between tabs dozens of times per hour. Whether for ancillary work or for quick entertainment, it can feel efficient, or even necessary. But cognitively speaking, the human brain cannot truly multitask. Instead, it switches. And every switch carries a hidden cost.
The cost is called “attention residue.” It’s the lingering cognitive activation that remains after you shift from one task to another. Even when you believe you’ve moved on, part of your mind is still stuck in the previous task. The result is slower thinking, reduced accuracy, and a sense of mental fatigue that accumulates throughout the day.
Why Task-Switching Is a Bad Habit
One of the most groundbreaking discoveries in this field is that of Sophie Leroy, who introduced the concept of attention residue. Her seminal 2009 study, published in Organizational Behavior and Human Decision Processes, showed that the key to successful task switching is to get psychologically disengaged from the previous one even before its completion.
During an........