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By Jill Hinrichs, PCC | Sr. Consultant and Strategy Lead
It was a Friday afternoon when the call came in. The voice on the other end belonged to one of the sharpest leaders I know. MENSA-level smart. The kind of person who walks into a room and immediately sees what everyone else missed. He had recently been promoted into a role of significantly greater complexity, leading leaders for the first time, navigating a difficult organizational dynamic above him, and simultaneously managing a personal life that had become, by any measure, a lot. He was not calling to talk about any of that.
He was calling because he was scared. Something felt off. He was forgetting things. Simple things. Things that a person like him did not forget. And in the silence underneath his words was a question he was almost afraid to ask out loud:
The answer was no. But the explanation required some science.
The Brain Does Not Separate Work From Life
Researchers call it cognitive bandwidth: the brain’s usable processing capacity at any given moment. It is not unlimited. For a leader carrying a significant personal load alongside a high-complexity role, that capacity is being drawn from before the workday even begins. The decisions being weighed, the logistics being tracked, the emotional labor of holding someone else’s fear or uncertainty while still showing up and leading well. That is real cognitive work, and it competes directly with the work happening at the office.
Research on stress and memory confirms that sustained pressure shifts the brain’s encoding priorities toward what feels most urgent. Lower-stakes information, even professionally important information, encodes differently. A leader who is normally sharp and thorough starts dropping small things. Not because their capability has changed. Because their cognitive floor is already full.
This is not a character issue. It is neuroscience.
What We Can Do About It
For leaders carrying this kind of load: write things down, build routines, reduce small decisions wherever possible. Cognitive bandwidth does not respond to willpower. It responds to load reduction. And naming what is happening to a trusted colleague or manager is not weakness. It is how the leaders who navigate these seasons most effectively actually get through them.
For organizations: the most valuable thing you can offer is permission. Permission to say what is happening without it being read as a red flag. Check-ins that are human rather than evaluative. A manager who understands that a full life does not make someone a less capable leader. It makes them a human one.
My client on that Friday phone call was not losing it. He was carrying more than any one system should have to hold, and his brain was telling him so. Once he understood that, something shifted. Not the load. But his relationship to it.
Organizations that recognize cognitive saturation as a real and temporary condition rather than a performance flaw are the ones that keep their best people through the hardest chapters of their lives. That is not a soft benefit. That is a retention strategy.
