You know the feeling. It's 2 p.m., you've been in back-to-back meetings, your inbox has forty unread messages, someone just asked you a simple question, and your brain just... stalls. Not because you're incapable. Not because you don't care. Your mind has simply run out of room. That feeling has a name: cognitive load. And understanding it can change how you structure your workday, your workspace, and even how you talk to your coworkers.

Burnout rarely happens overnight. More often, it develops gradually, beginning with small changes that are easy to explain away. You might notice that you're more tired than usual, less patient with coworkers, or finding it harder to concentrate. Because these changes can seem manageable at first, many people continue pushing through until their mental and physical energy are significantly depleted.