Struggling to focus? It might be cognitive debt

Many people come to me with the same quiet fear: “I am becoming so forgetful,” “I cannot concentrate like I used to,” “I read something and it doesn’t stick,” and “When I open my phone to do one thing, I end up doing five others.”

Some worry about ADHD. Others worry about early dementia.

Sometimes the answer is ADHD or a neurocognitive disorder. Many times, its anxiety, depression, grief, menopause, burnout, poor sleep, medication side-effects, thyroid disease, vitamin deficiencies, alcohol use or chronic stress causing our brain efficiency. 

These possibilities matter, and persistent or worsening memory problems should always be taken seriously. But there is another possibility that may explain some of what we are experiencing: cognitive debt.

Cognitive debt is what accumulates when we repeatedly outsource the effortful work of thinking, remembering, navigating, reading, writing, planning and deciding to our devices. In the short term, technology gives us relief. It remembers the appointment, finishes the sentence, writes the message, calculates the route, stores the number and summarises the meeting outcomes.  

Although we feel efficient, over time, we may notice that our own cognitive muscles feel weaker. We do not remember phone numbers anymore. We struggle with a long article - we skim instead of read. We reach for Google before trying to recall and use GPS for routes we should know. We ask AI to summarise what we have not read, write what we have not yet formulated ourselves and organise what we have not fully understood.

At first, this feels like productivity. Later, it may start to feel like dependency.

The question is not whether technology is useful. Of course it is useful. The question is whether we are using it in ways that strengthen or weaken our own cognitive capacity. 

The brain is not a filing cabinet

We often think of memory as if it were a storage system: put information in, retrieve it later. But the brain is far more active than that. Remembering is strengthened by attention, emotion, meaning, repetition, sleep, movement and context. 

Learning is not just receiving information. It is the process of wrestling with it.

When we read deeply, pause, underline, make notes, argue with an idea, explain it to someone else, write it in our own words and connect it to what we already know, we are building neural pathways. We are not just producing an output. We are changing the brain. This is why the struggle matters. Confusion is not a sign that learning has failed. It is often where learning begins. 

However, many digital tools are designed to remove friction. They make things faster, smoother and easier. That is useful until ease replaces effort entirely.

If every moment of uncertainty is immediately solved by a search engine, every paragraph summarised by AI, every blank page completed by a chatbot and every quiet moment filled by a screen, the brain gets fewer opportunities to practise the work that keeps it strong.

READ: Creativity is not just child’s play

“But it feels like I have ADHD”

Many adults today wonder whether they have ADHD because they feel distractible, forgetful, restless, overwhelmed and unable to focus. Sometimes they do have ADHD, especially if these patterns have been present since childhood, occur across settings and cause significant impairment. ADHD is not caused by screens, although digital environments can certainly make ADHD symptoms worse. 

But a distracted life can also mimic some features of ADHD. If your day is filled with notifications, constant task-switching, fragmented attention, late-night scrolling, poor sleep and little time for deep work or recovery, your brain may start behaving as if it cannot focus because it rarely gets the conditions in which focus can emerge. 

Attention is not only an internal trait. It is also an environmental achievement. A brain that is constantly interrupted will struggle to concentrate. A brain that is always stimulated will struggle with boredom. A brain that is always externally guided will struggle to initiate. A brain that is never allowed to rest will struggle to remember.

This does not make the experience any less real. But the cause is not always a lifelong neurodevelopmental disorder, but rather that we are living in ways that constantly overload, fragment and outsource our attention.

“I  fear it’s dementia”

Dementia is not normal forgetfulness. It usually involves progressive decline that interferes with daily life. 

Warning signs may include repeatedly forgetting recent events, getting lost in familiar places, struggling to follow conversations, difficulty managing finances or medication, losing the ability to perform familiar tasks, marked changes in judgement, personality or behaviour, or increasing confusion about time and place. If these symptoms are present, especially if they are worsening, it is important to seek a proper medical assessment.

But many people who fear dementia are actually experiencing something different: cognitive overload. They are trying to manage too much, sleep too little, absorb too much information, respond to too many demands and live with too little quiet. 

The result can feel frighteningly similar resulting in experiencing word-finding problems, poor concentration, mental fatigue, forgetfulness and a sense that the brain is “not working”. 

The difference is that overload-related cognitive symptoms often fluctuate. They are worse when we are tired, stressed, grieving, anxious, multitasking or sleep deprived. They may improve with rest, structure, movement, reduced digital noise and better emotional regulation.

This is why we need both caution and hope. Do not ignore persistent cognitive changes. But do not immediately assume the worst either.

The myth of effortless efficiency

Modern life has sold us a seductive promise: that the less effort we use, the better. But the brain does not develop through convenience alone. We build thinking with thinking. We build memory by remembering. We build judgement by making decisions. We build resilience by tolerating manageable difficulty. We build creativity by sitting with the blank page. We build wisdom by reflecting. 

When technology removes every pause, silence, uncertainty and small cognitive demand, we may become more efficient but less cognitively fit. This is the paradox of our time: the more our tools do for us, the less confident we may become in our own minds.

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Rebuilding cognitive fitness

The good news is that cognitive debt is not a life sentence. The brain responds to use. We can rebuild depth, attention and memory through small, repeated practices.

Here are some ways to begin.

1. Write by hand: Handwriting slows thinking down in a useful way. It forces selection, synthesis and deeper processing. Keep a notebook, write lists, journal, map your day out on paper and write down notes during meetings or lectures. Write one paragraph about something you read before asking AI to summarise it. Writing is not merely a way of recording thoughts; it’s often how thoughts are formed.

2. Read something long: You don’t have to start by reading a book.  Start with a longish article, essay or chapter. And notice the urge to skim. Stay with the discomfort. Deep reading is mental resistance training.

3. Practise remembering before searching: Before you Google, pause. Try to recall the name, route, fact or idea. Give your brain 20 seconds of effort before outsourcing. Even if you do not remember, the attempt matters. The goal is not to reject technology. The goal is to keep the retrieval pathway alive.

4. Use AI as a tutor, not a substitute: Ask AI to quiz you, challenge your assumptions or explain where your reasoning is weak. Do not only ask AI to create and produce the final answer or document.  Better prompts include: “Ask me questions to test my understanding.” “Challenge this argument.” “What assumptions am I making?” “Give me feedback, but do not rewrite it for me yet.” Use the AI tools to strengthen thinking, not bypass it.

5. Protect single-tasking: Multitasking feels productive, but it fragments attention. Choose one task. Close unnecessary tabs. Turn off notifications. Work in 25- or 45-minute blocks. Let your brain experience the relief of doing one thing at a time. Depth requires boundaries.

6. Spend time in nature: Nature restores attention in a way screens rarely do. Walk without headphones. Sit outside and notice light, wind, birds, leaves, sounds and smells. Allow your eyes to look far away instead of a screen. The brain needs spaciousness.

7. Move your body: Exercise supports mood, sleep, attention, executive function and memory. A walk, run, swim, gym session, yoga class or even gardening can help shift the brain out of digital static and back into embodied rhythm. The body is not separate from cognition. Movement is brain care.

8. Make room for boredom: Today many of us fear boredom. But boredom is often the doorway to imagination, reflection and integration. Do not fill every queue, red traffic light, waiting room or quiet evening with a screen. Let the mind wander because that is often when it begins to make meaning.

9. Sleep as if memory depends on it - because it does: Poor sleep can make almost anyone feel distractible, forgetful and emotionally fragile. Protect your sleep window. Reduce late-night scrolling and keep the phone away from the bed and give your brain a chance to consolidate the day.

10. Know when to seek help: Seek medical advice if memory or attention problems are persistent, worsening, affecting work or relationships, or associated with getting lost, repeated confusion, major personality change, poor judgement, difficulty managing finances or medication, or problems performing familiar tasks. 

Also seek help if attention problems have been lifelong and impairing, or if they are accompanied by depression, anxiety, trauma, burnout, substance use or severe sleep disruption. It may be ADHD. It may be something medical. It may be stress. It may be cognitive overload. The point is not to self-diagnose, but to understand what your brain is asking for.

Our devices are powerful. AI is powerful. But the human brain still needs effort, silence, struggle, movement, sleep, nature, handwriting, conversation and time. We do not need to abandon technology. But we may need to reclaim the parts of thinking we have quietly handed over.