Why your team feels used up

Jun 4

Fifty-one percent of workers feel used up at the end of the workday. That number comes from aggregated data published in 2026.

It sits alongside another finding. The share of people feeling very stressed has climbed eleven points in two years. From 19% in 2024 to 30% today.

These numbers are uncomfortable. But the reaction most leaders have to them is understandable. Too much work. Too little time. The answer must be to reduce the load, redistribute the tasks, or change how work is structured.

That instinct is partly right. But it misses something the brain science has been pointing to for a while. The problem is not just what people are being asked to carry. It is what the brain has left to carry it with.

When the brain starts running on less

Here is what the data does not explain. The workload often has not changed. What has changed is the brain’s ability to handle it.

In my book, Brain Athlete, I describe five levels of brain condition. Excellent is where you perform at the top of your capacity. Critical exhaustion is where even simple tasks feel overwhelming. Most people assume they are operating somewhere near the top. The data suggests otherwise.

At the level I call early exhaustion, your brain operates at roughly 50 to 75 percent of full capacity. This is where Corty starts struggling. Corty represents the prefrontal cortex, the part of the brain responsible for focus, decision-making, and complex thinking. At this level, Corty can no longer filter out distractions the way she used to. Tasks that used to take an hour take two. Emails you would normally draft in five minutes take twenty.

At early exhaustion, you also become more emotionally reactive. Patience shortens. Small frustrations land harder. This is not a personality shift. It is Corty losing her ability to regulate your response before it comes out.

The result is a feeling that has nothing to do with the actual amount of work. You feel overwhelmed because the brain you are using to process the work has less power. Not because the work got harder. Because the brain got weaker.

A 2026 policy paper from the Euro-Mediterranean Economists Association names this the execution gap. The gap exists when people have the right skills but lack the cognitive capacity to deploy them fully. In Europe, this gap costs over 600 billion euros annually.

Most of that loss does not come from people calling in sick. It comes from people showing up and performing at a fraction of their capacity. That fraction is Corty running on empty.

The manager who cannot see what is happening

At early exhaustion, one of the first things that changes is your ability to see your own state clearly. Corty is responsible for self-monitoring and clear judgment. And Corty is the first thing to go. So you become less able to notice that you are performing at sixty percent. You just feel like you are working harder. And when you are working harder but getting less done, the natural response is to push more.

That response makes it worse.

The 2026 Gallup report documents what happens when managers operate from this state long enough. Engagement among managers has fallen nine points in three years. From 31% in 2022 to 22% in 2025. The people responsible for holding teams together are quietly breaking down. Stress up seven points. Loneliness up ten. Anger up twelve.

None of this shows up in a performance review. It shows up in the team. In slower decisions. In shorter patience. In meetings that drain rather than energize. In a culture that gradually stops feeling safe.

Feeling overwhelmed is not a symptom of too much work. Often, it is a symptom of a brain that can no longer handle what it used to manage without effort. The workload is the same. The brain running it is not.

What actually helps Corty

You cannot think your way out of a depleted prefrontal cortex. But you can give it what it needs to recover.

Three things deplete Corty most. Sleep deprivation, cognitive overload, and sustained stress without time to recover.

The lever that actually moves brain condition is not pushing harder. It is building recovery into the work itself.

In practice this means two things.

First, start naming where your team actually is. Not in performance terms, but in brain condition terms. Ask the question directly. How recovered do you feel coming into this week? The answer tells you more than any engagement survey.

Second, look at the structure of the day. Corty needs periods of deep, uninterrupted work. And genuine breaks between high-demand tasks. Not long ones. Five to ten minutes without screens. That is enough for Corty to partially restore.

This is not wellness language. It is performance infrastructure. A team with a functioning prefrontal cortex makes better decisions, handles pressure more effectively, and recovers from setbacks faster. That is not a nice outcome. That is the job.