🧠 🚙 Brain Traffic Jam: Why Multitasking Doesn’t Work

Years ago, I remember going to a student’s house for a coaching session. When I arrived, he was already sitting at the table with his homework spread out in front of him. At first glance, it looked like a productive scene—until I noticed his laptop was open, playing YouTube videos in the background.

He was completely convinced that he could multitask—watching the video while completing his homework—and still produce high-quality work. But if we understand the science behind cognitive flexibility, we know that this isn’t how the brain works. Shifting between tasks, especially those that require focus, comes with a cognitive cost.

Cognitive flexibility, the brain’s ability to shift between different tasks, thoughts, or problem-solving approaches, is essential for learning and productivity. This ability is often referred to as shifting within the framework of executive function. However, when we attempt to multitask, we’re not actually doing two things at once; instead, our brain is rapidly switching between tasks. This process slows us down, increases errors, and reduces efficiency.

So, how did I help this student realize that multitasking wasn’t working in his favor? In my executive function course, I teach an engaging activity in our bonus module that demonstrates why true multitasking is nearly impossible. The activity requires students to perform two cognitive tasks simultaneously—something they assume will be easy. However, once they attempt it, they quickly recognize the challenge of shifting their attention and the decline in their performance.

By guiding students through this experience, they can feel the difference between focused work and divided attention. It’s an eye-opening moment that helps them understand why strategies like focused work blocks, time management techniques, and reducing distractions are far more effective than trying to juggle multiple tasks at once.

Want to learn more about how cognitive flexibility impacts learning and productivity? Visit our website to explore our executive function coaching programs and courses!