It's not the hours. It's the decisions. You tell yourself it's because you're working too much. But people who work longer hours sometimes feel fine. And people on reasonable schedules feel wrecked. The real cause of burnout isn't workload. It's decision fatigue.
What decision fatigue actually is: Every decision you make consumes a small amount of mental energy. Not just big decisions. Small ones too. What to wear. What to eat. What to prioritize. What to say no to. By mid-day, many people have made hundreds of small decisions. The quality of their decisions drops. They feel exhausted even if they haven't physically done much.
Why this is invisible: We don't track decisions the way we track time. We think about workload as hours, not as decision volume. A day full of 15-minute tasks that each require a decision is more exhausting than a day full of 15-minute tasks that are routine.
The fix: Reduce decisions where they don't matter. Wear the same thing. Eat the same breakfast. Use templates for recurring communications. This sounds trivial. It isn't. Saving your decisions for the ones that actually matter means you have more capacity for them. Batch similar decisions. Build routines for high-frequency decisions.
I put together a productivity system specifically around decision management: daily MIT system, context-based task lists, weekly planning templates, decision journal.
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