How often have you found yourself reaching for your phone with no particular reason to?
We've been there.
You finish a task,
You sit down and almost immediately your hand is moving towards the screen before any conscious thought even forms.
Have you ever truly noticed that pull?
This is not a focus problem.
It's not a character flaw either.
It is a specific neural network doing exactly what it was designed to.
The default mode network or DMN is the system that activates whenever the brain is not engaged in a focused task.
First identified in the early 2000s by neuroscientists at Washington University in St.
Louis,
It is the network responsible for mind-wandering,
Self-referral thinking,
And what we might be called time-traveling.
So replaying the past,
Rehearsing the future events.
And it is always organized around one thing,
The self.
Moi.
As if it were one.
We've all been there.
You might be having lunch with a family member physically present in the room,
But simultaneously running a background calculation about tomorrow's meeting.
Or perhaps you are sitting in a presentation,
But you are messaging a colleague about something completely different that does not relate to the presentation.
And this is what the DMN does.
And it's also not the enemy.
It is essential for creativity,
Empathy,
And making sense of the world.
The problem though arrives when in high performance this mode never gets switched off.
The driven doing mode keeps it locked in and the result is a nervous system running on continuous low-grade activation,
Never fully arriving anywhere.
You might ask,
Why does this matter for high performance specifically?
Well,
Research shows that an overacted DMN,
Or default mode network,
Correlates with increased anxiety,
Reduced decision-making quality,
And difficulty experiencing satisfaction,
Even when external results are strong.
And this is why it is so common for a high achiever to reach a significant goal and feel almost nothing,
Or immediately move to the next goal When the DMN runs constantly,
Also sleep gets compromised.
In particular,
Deep sleep.
Deep sleep is the state responsible for physical repair,
Hormonal regulation,
Memory consolidation.
But when the nervous system stays in a high alert state,
Deep sleep can be reduced and the body loses some of its overnight repair and recovery.
Time.
Sleep matters more than most of us want to acknowledge.
If we constantly trade it for productivity,
The biological cost compounds,
Cognitive load declines,
And the body ages faster at a cellular level.
So,
This is where mindfulness comes clinical rather than conceptual.
By returning our attention to a single point of focus,
Usually the breath or body sensations,
We train the brain to notice when the DMN has been activated.
Not to suppress it,
But simply to notice.
We notice and we return.
Neuroimaging studies show that experienced meditators have a considerable reduction in DMN activity,
Greater ability to disengage from future planning,
And a growing capacity to make decisions that feel true to who they actually are,
Rather than who the urgency says they should be.
Other documented benefits include improved sustained attention,
Working memory,
Performance under pressure,
And of course,
A restored capacity for empathy.
So I want to leave you with one question.
From which mode do you want to be operating today?
Bring that inquiry into your next moment.
Not as a self-improvement project.
But as an act of genuine curiosity.
If you would like to go deeper,
Follow my tutor profile and join the weekly Sunday live every week at 8 p.
M.
UK time.
