In career coaching, we often focus on workload management.
We look at the calendar, the "to-do" list, and the number of unread
emails. But for many leaders, the real crisis isn't the number of hours
worked—it's the mental overload that never stops.
You know the feeling: you have
a "light" day on paper, yet you finish it feeling completely
depleted. You aren’t physically tired; you’re experiencing a processing
overload. Your brain has reached its limit for holding, planning, and
worrying.
The Invisible Weight of Leadership
What we are talking about here is
the invisible burden of leadership. While your workload is what you do, your
mental load is what you carry. Organisational psychologist Liane Davey refers to
this phenomenon as "thoughtload." In her work, she highlights that
this strain comes from three main sources:
- the mental effort of juggling competing priorities,
- the emotional toll of uncertainty, and
- the chronic exhaustion of being "on" 24/7.
When your mental overload is high, you
aren't just busy—you’re cognitively and emotionally overdrawn. This creates a
"psychological drag" that makes even simple decisions feel like a
monumental effort.
Recognising the Signs of Processing Overload
Leaders often
ignore these symptoms because they "look" productive on the outside.
If you are experiencing the following, you are likely suffering from a peak
in your cognitive load:
- Decision Fatigue: You find yourself deferring simple choices because your "decider" is broken.
- Persistent Brain Fog: You struggle to find words or recall key details from a meeting that happened just an hour ago.
- Emotional Flatness: You feel numb or reactive rather than empathetic and engaged with your team.
- Constant Anticipation: Your mind is perpetually scanning for the next "shoe to drop," even during dinner or on the weekend.
How to Break the Cycle of Mental Overload
No calendar tool or time-management hack
can fix a brain that has no room left to process. To reclaim your capacity, you
must transition from managing your time to protecting your mental space.
1. Make
the Invisible Visible
One reason mental overload is so draining is that it’s
unquantified. Try a "brain dump" at the end of each day. List not
just the tasks, but the worries, the concerns, and the unresolved questions
running in the background. Getting them out of your working memory and onto
paper significantly reduces your background processing load.
2. Close the
"Open Loops"
Unfinished business creates the most mental drag. If a
decision is 80% there, make it. If a conversation needs to happen, schedule it.
As Dr Davey suggests, lowering your own (and your team's) thoughtload often
starts with clear expectations and removing the "unproductive
conflict" that burns mental energy.
3. Practice "Cognitive
Triage"
Not all information requires your deep focus.
Learn to categorise
incoming demands into:
- High Processing: Requires your best strategic thinking.
- Low Processing: Routine tasks that can be done with a "tired" brain.
- Noise: Information that you can safely ignore or delegate immediately.
The Bottom Line
True high performance isn't about how much
you can fit into a 40-hour (or 60-hour) week. It’s about maintaining the mental
clarity to lead with intent rather than just reacting to the noise. By naming
the problem—mental overload—and recognising the weight of your internal
processing, you can start making the structural changes necessary to lead
sustainably.
"What's currently causing 'mental overload ' in your week?"
