Why Overwhelm Can Feel Inescapable and What to Do About It
- 3 days ago
- 4 min read
We open the laptop and somewhere between pulling up the first tab and the second, we know it’s one of those days. The task list was manageable an hour ago…or at least it felt that way. Now it's less a list and more a weight crushing down on us. We close the tab, open a different one, then check something we already checked five seconds ago. Thirty minutes pass and nothing has really gotten done. The overwhelm we might feel isn't actually about the number of demands; it’s about not feeling in control of the things that need to get done.
What's happening at that moment is neurological rather than a productivity failure or a mindset gap. It also starts long before we even open the laptop.
When Our Brain Loses the Ability to Sequence
The part of the brain responsible for planning, prioritizing, and sequencing tasks, runs on a genuinely limited resource called working memory, which is the cognitive workspace that allows us to hold and analyze information in real time. When the demands on that workspace exceed its capacity (i.e. too many inputs, too many unresolved decisions, too many things that feel simultaneously urgent) our system starts to shut down. Instead of slowing down and working through things more carefully, it fragments. The ability to decide what to do first, which is itself a complex cognitive task, becomes one more thing the brain can't manage.
This is often called cognitive overload, a state where the working memory system is so saturated that even simple sequencing falls apart. Imagine you’re in a loud room, trying to remember someone’s name while simultaneously talking to another person. What are the chances you remember the name? Now apply that same ida to the entire task of organizing a day. Oftentimes, we stall not because we're lazy or disorganized, but because the neural circuitry required to get unstuck is the same circuitry that's already maxed out.
The Nervous System Problem Underneath
Working memory doesn't operate in a vacuum. Its capacity is shaped directly by the state of our autonomic nervous system, which is the system that determines whether we feel a sense of calm readiness or active threat response and stress.
When the nervous system is in chronic stress activation, not the sharp, immediate stress of a close deadline, but the low-grade, persistent activation that builds from weeks of high demand, poor sleep, insufficient recovery, and ongoing uncertainty, something important changes in the brain. The amygdala, which is the threat-detection center, starts treating ambiguity and task volume the way it would treat a physical danger. It triggers a hormonal response that dials up alertness while simultaneously pulling resources away from the part of the brain that enables critical thinking. Speed and threat-scanning are prioritized over deliberate reasoning.
In acute stress, this trade-off is useful, but chronic activation doesn't come with an off switch. The threat response stays active and our ability to think remains resource-depleted. The working memory we need to sequence and prioritize our day keeps getting hijacked by a nervous system running a threat protocol it can't exit.
This is why overwhelm, especially in chronically stressed people, can arrive without warning. Many times, it’s not even in response to a genuinely catastrophic workload but as a response to a perfectly normal one. Because of chronic stress, our “get-sh*t-done” threshold drops. What would have been manageable six months ago now triggers a full shutdown. The problem isn't the to-do list. The problem is the baseline state from which we're approaching it.
How Overwhelm Shows Up
In practice, this manifests in patterns that can be interpreted as character flaws, if we’re not careful, but are really physiological signatures. Maybe it’s the inability to start tasks, even tasks we know how to do and genuinely want to complete. Maybe it’s the compulsive checking of messages and feeds, which isn't distraction-seeking, but the amygdala scanning for resolution to an open threat loop it can't close. Many times it’s the sense that rest doesn't actually restore us because the nervous system stays activated even during downtime. When we get to this point, small decisions start to feel enormous and large ones feel paralyzing.
Athletes experience a version of this during overreaching, a state where training load exceeds the body’s ability to recover. Performance doesn't just plateau in this state; it falls below where it was before the training block began. The body gets worse because it's been pushed past the point where adaptation can occur. The same logic applies to cognitive performance under chronic load. More input, more decisions, and more demand doesn't produce more output once our system is saturated. It produces less, and the deficit compounds.
This is also why the common advice to make a smaller list, block time, or use a task manager often misses the actual problem. Those interventions address the working memory bottleneck at the level of task organization. They don't touch the nervous system state that's limiting working memory capacity in the first place.
A Different Way to Understand the Wall
What changes when we understand overwhelm this way is how we interpret the shutdown. The freeze, the inability to start, and the sensation of being stuck under pressure are signs that a system built for acute threat management is running a threat response in conditions it wasn't designed for. The brain isn't failing. It's doing exactly what it was built to do, in a context that makes that response counterproductive.
Feeling overwhelmed is a signal. It’s the output of a nervous system that has been ground down long enough to force our baseline to shift. When the mechanism is visible, the picture of what's actually happening changes, even if the list doesn't. At least we can reassess the situation and attack the root cause.
References
Arnsten, A. F. T. (1998). Catecholamine modulation of prefrontal cortical cognitive function. Trends in Cognitive Sciences, 2(11), 436–447. https://doi.org/10.1016/S1364-6613(98)01240-6
Baddeley, A. (2003). Working memory: Looking back and looking forward. Nature Reviews Neuroscience, 4(10), 829–839. https://doi.org/10.1038/nrn1201
Luethi, M., Meier, B., & Sandi, C. (2009). Stress effects on working memory, explicit memory, and implicit memory for neutral and emotional stimuli in healthy men. Frontiers in Behavioral Neuroscience, 2, 5. https://doi.org/10.3389/neuro.08.005.2008
McEwen, B. S. (2007). Physiology and neurobiology of stress and adaptation: Central role of the brain. Physiological Reviews, 87(3), 873–904. https://doi.org/10.1152/physrev.00041.2006
Sweller, J. (1988). Cognitive load during problem solving: Effects on learning. Cognitive Science, 12(2), 257–285. https://doi.org/10.1207/s15516709cog1202_4
