What Stress Does to the Thinking Brain
Why Executive Function Becomes Harder Under Stress and What Parents Can Do to Help
By Lauren Foster, MS, CCC-SLP, CNHP
Your child knows what to do, but suddenly cannot begin. The homework sits untouched. A familiar transition becomes a struggle. A direction they heard moments ago seems to disappear. Everyone is trying to get out the door, but your child cannot move toward the task.
Why can they do this sometimes, but not now?
It is easy, especially when we are rushed or worried, to interpret these moments as refusal, defiance, carelessness, or a lack of motivation. Yet there may be something very different happening beneath the behavior. Stress can temporarily change how much access a child has to the very skills we are asking them to use.
The Thin Yellow Paper
In fourth grade at Little Tor Elementary School in New City, New York, social studies tests were stressful for me. I cared deeply about doing well, which sometimes seemed to make everything harder. After one too many evenings of tears and worry before an exam, my dad created a routine.
We would sit together at our kitchen table. He would pull out the thin yellow paper from Penn General Agency, the kind that almost felt like tracing paper, along with his blue Bic ballpoint pen. I can still picture his handwriting and how firmly he pressed, leaving an impression on the blank pages underneath.
My dad made practice tests just for me. We talked through the material. He asked questions, and I explained ideas in my own words. When I got stuck, he did not simply give me the answer. He gently guided me back to the textbook until I could discover it for myself.
Neither of us knew the neuroscience behind why this helped. We simply knew that it did.
Looking back, I understand that my dad was doing much more than helping me study social studies. His calm presence, predictable routine, and patient support created conditions in which I could think again. What I remember now is not the content of those tests. I remember feeling safe, capable, and understood.
What Stress Does to Executive Function
Our brains and bodies are designed to protect us. When the nervous system detects danger, whether that danger is physical, emotional, social, or even anticipated, it begins preparing us to respond. That is not a flaw. It is biology.
The challenge is that protection requires different resources than thoughtful problem-solving. Under stress, the brain becomes more focused on identifying and responding to possible threat. At the same time, access to higher-level thinking can become less efficient.
Executive functions are the skills that help us manage ourselves and move through daily life. They include planning, working memory, flexible thinking, impulse control, emotional regulation, attention, organization, and task initiation. We depend on them to remember directions, shift activities, begin an assignment, tolerate frustration, and choose what to do next.
These are also the very skills that can become harder to access when stress rises.
Our brains and bodies are designed to protect us. When the nervous system detects danger, whether that danger is physical, emotional, social, or even anticipated, it begins preparing us to respond. That is not a flaw. It is biology.
A child who cannot begin may not be choosing not to begin. A child who forgets a direction may have heard every word without enough working-memory capacity available to hold onto it. During a change in plans, flexible thinking may simply be less available.
“Executive function and self-regulation skills act like an air traffic control system in the brain, helping us manage information, make decisions, and plan ahead.” – Center on the Developing Child at Harvard University
This is why a child can manage something on Tuesday and struggle with the same expectation on Wednesday. Sleep, hunger, sensory load, uncertainty, illness, relationships, and accumulated demands can all affect how accessible these skills feel. Knowing how to do something and being able to access that knowledge under stress are not always the same thing.
The Executive Function Elevator™
I created The Executive Function Elevator™ as a friendly way to help children, teens, parents, educators, and clinicians notice these changes without shame. It is informed in part by Polyvagal Theory and Deb Dana’s work translating nervous-system concepts into accessible language.
When we feel safe, connected, and regulated, we tend to have greater access to our Penthouse, or thinking brain. We can plan, communicate, remember, organize, adapt, and solve problems more effectively.
As stress builds, access to our thinking brain often becomes more limited, and the Elevator begins moving down toward the Lobby. The nervous system shifts toward protection through fight, flight, freeze, or fawn responses. We may argue, escape, avoid, become restless, go blank, or focus on keeping others happy.
When overwhelm becomes even greater, the Elevator may move toward the Basement, where shutdown, withdrawal, exhaustion, hiding, or disconnection can emerge.
The Elevator is an introductory metaphor, not a set of rigid boxes. Nervous-system states are dynamic and can be blended. A child may look calm while feeling tremendous activation inside. The purpose is not to label a child or determine an exact floor. It is to build awareness and create a shared language.
The goal is not to stay in the Penthouse all the time. Every nervous-system response has a protective purpose, and all of us move through different states. The invitation is simply to notice where we may be and understand what we need.
Curiosity Before Conclusion
Behavior is communication, but it does not always tell the whole story. When we rush to a conclusion, we may respond only to what we can see. Curiosity allows us to wonder what may be happening underneath.
“The mind narrates what the nervous system knows. Story follows state.” – Deb Dana
What might this behavior be telling me?
Perhaps it is communicating stress, uncertainty, fear, sensory overload, exhaustion, disconnection, or a nervous system doing exactly what it was designed to do. This does not mean that limits disappear or that difficult behavior must be ignored. It means we seek understanding before deciding how to respond.
That pause matters. When a parent or caregiver can recognize their own rising stress and choose curiosity instead of immediate frustration, the energy in the interaction begins to shift. Our facial expression, voice, pacing, posture, and choice of words all communicate safety or threat. A curious response creates an environment of possibility rather than judgment.
Pausing is far more difficult when a caregiver’s own resources are depleted. Parents have nervous systems, too. When sleep, support, or emotional reserves are low, remaining grounded can feel almost impossible. Caregivers need realistic ways to refill their own buckets, along with people and systems that help carry the load. We cannot pour consistently from an empty pitcher.
This is a reminder that your needs matter in the family system. Sometimes the compassionate question is not only, “What does my child need?” It is also, “What might my brain and body need right now?”
Five Ways to Support the Thinking Brain
1. Connect before correcting. Begin with your presence. Soften your voice, slow your pace, and communicate that you and your child are on the same team. Connection might sound like, “This feels really hard right now. I’m here. We’ll figure out the next step together.”
2. Reduce language and demands. When a child is overwhelmed, more words usually require more processing. Use one short direction at a time. Pause. Give the brain time to receive the message before adding another expectation.
3. Make the task smaller. “Clean your room” may require initiation, planning, sequencing, decision-making, attention, and emotional regulation all at once. Try beginning with one visible action: “Let’s put the books on the shelf.” Starting together can provide the bridge a stressed brain needs.
4. Offer movement or sensory support. Walking, stretching, pushing against a wall, holding a preferred sensory tool, stepping outside, or taking comfortable breaths may help. Invite rather than insist: “Would movement, quiet, or sitting together help?”
5. Return to problem-solving later. A moment of protection is usually not the best time for a lesson, a long explanation, or a demand for insight. Once thinking becomes more accessible, you can revisit what happened, listen to your child’s perspective, repair if needed, and plan together for next time. Regulation before expectation does not remove accountability. It helps make reflection and growth possible.
A Different Story
The thin yellow paper from my childhood is long gone, but what my father gave me at that kitchen table remains. He did not make the test disappear. He helped create enough safety and connection for me to access what I knew.
Our children will still encounter homework, transitions, disappointment, forgotten directions, unexpected changes, and mornings when getting out the door feels impossible. We cannot remove every stressor, nor is that the goal. We can help them understand that a difficult moment is not a definition of who they are.
A child struggling to access executive function does not need a story of inadequacy written around that moment. They need curiosity, connection, appropriate support, and another opportunity when their thinking brain is more available.
Understanding creates compassion. Compassion creates connection. Connection creates growth.
In the months ahead, I will explore this progression more deeply: how understanding can open the door to compassion, connection, and growth.
Sometimes that growth begins with one small pause and one different question: What might this behavior be telling me?
Need a tool to support you?
Check out Lauren’s Executive Function Elevator!
References:
Center on the Developing Child at Harvard University. (n.d.). A Guide to Executive Function. https://developingchild.harvard.edu/resource-guides/guide-executive-function/
Dana, D. (n.d.). Polyvagal Theory. Rhythm of Regulation. https://www.rhythmofregulation.com/polyvagal-theory
Lauren Foster | The Executive Function Elevator™
