Ever Walked Into a Room and Forgotten Why?

The quirky cognitive effect that everyone experiences but few understand

Your brain hits "reset" at the threshold to process new surroundings, often leaving your intentions behind. It’s not a memory failure, it's just your cognitive compartmentalisation at work!

Why do we forget when we walk through doors?

Have you ever done that thing where you walk into a room and you can’t for the life of you remember why it is you went in there?

I certainly have.

As we age, it can be easy to attribute it to cognitive decline - but there are people in their twenties who experience this too, so what’s going on there then?

Have you ever wondered if forgetfulness like this might be linked to something more serious?

No need to fear, because what we’re experiencing is actually a recognised phenomenon and it’s called “The Doorway Effect” (or sometimes “The Location Updating Effect”).

The Science Behind the Doorway Effect and Memory Loss

It’s not that there’s something magical about walking through a doorway, but more something about transitioning between different spaces or contexts. 

For example, it could be that you experience it when you park up and go into a shop - many a time I have driven off having forgotten to buy something that I had in mind on arrival!

So, whether it’s a doorway or a different location, the change acts as an “event boundary”, i.e. it’s the signal to your brain that there is a transition happening from one place (or context) to another.

Our brains have a tendency to organise experiences into discrete events…compartmentalising things. 

Your Inner Meerkat is trying his best to hold onto every thought, but a high mental load makes the "Doorway Effect" much more likely to strike!

So when we move between spaces, our brain metaphorically moves us into a new box and, unfortunately, sometimes information temporarily gets lost (i.e., what we were intending to do).

So whatever intention you had in the previous room gets forgotten as you move into the next one.

The effect can be even worse when we're mentally fatigued, as a high cognitive load puts extra strain on our working memory. When our mental resources are taxed, it becomes harder to remember tasks or intentions.

Common Scenarios of Forgetfulness: When Memory Slips Happen

• Forgetting why you went into a room

• Losing your train of thought in a conversation as you move into a different room

• Misplacing things after taking them into a different room

This phenomenon isn’t limited to physical spaces; it can also happen from the comfort of your own seat…when you’re digitally moving from one space to another:

• Switching between apps or browser tabs

• Getting distracted and not remembering why you opened a new program on your PC

The Link Between Forgetfulness, Anxiety, and Cognitive Load

Those situations can easily fuel worries about cognitive decline or even dementia, especially when anxiety heightens our focus on memory lapses.

But that can just make things worse, because the more anxious and worried we get, the more likely we are to forget something, due to the fact that anxiety and worry consume significant mental resources, which leaves less capacity for memory.

Is Forgetfulness a Sign of Cognitive Decline? Understanding the Frustration

While it might please our step counters when we’re trotting up and down stairs repeatedly because we keep forgetting what we were intending to do (guilty as charged!), it can be annoying and a bit of a time waster if it’s happening a lot.

Wasting time backtracking and looking for things makes us less efficient in what we’re doing, and means there's more of a potential for oversights.

It’s easy for our Inner Meerkat to spiral into worries about cognitive decline. But that very anxiety consumes the mental resources we need for memory, feeding the frustrating cycle of forgetfulness.

It can also be a bit embarrassing when we forget what we’re talking about mid-conversation.

Especially if we’re in a professional setting, that can set us off worrying that we look unprepared, and an anxious vicious cycle can start to form where the anticipation of forgetting something actually then leads to us forgetting it.

Unsurprisingly, this is incredibly frustrating and can lead to us second-guessing and doubting ourselves…again, contributing to that vicious cycle and making us feel more stressed.

It’s not all bad, though!

The effect can actually be really helpful in some circumstances, for example, helping you to leave stress behind as you go into a relaxed space - it’s kind of like having a natural “reset” button for our brains.

But what can we do about it if it is starting to be troublesome and impact our lives?

Practical Strategies to Overcome the Doorway Effect:

Carry a reminder object related to your task

If you carry an object with you that relates to the task as you transition from one context to the next, you can take advantage of something called tactile memory.

Carrying physical objects engages tactile memory. The physical sensation acts as a sensory anchor, helping your brain hold onto your task as you transition from one environment to the next.

This is a type of sensory memory related to touch.

The thing that you're carrying acts as a physical cue for the thing that you wanted to keep in mind because our brains link physical sensations with specific thoughts or actions.

For example, holding a relevant tool, such as a pen, might remind you of needing to write something down.

Or even holding a familiar object like a keychain or fidget spinner can serve as a tactile anchor, even if it's not directly related to the task at hand.

As we feel or interact with the object, the physical sensation prompts our memory to prevent forgetting as we move between spaces.

Mentally rehearse your intention before entering a new space

By repeating your intention, you strengthen the mental link and make it much less likely that the "Doorway Effect" will wash the memory away at the threshold.

As you move from one context to the next, verbalise your intention to yourself, which will reinforce it and make it less likely that you will forget.

Visualisation also helps in strengthening the mental link to retain the memory of your intention, such as using a keyword or short phrase relating to the task.

For example, if you're going to grab a coat from another room, mentally repeat "coat" as you cross the threshold, which should anchor the task in your mind.

Engaging your brain with the task before transitioning between spaces through mental rehearsal strategies reduces the likelihood of forgetting.

Minimise distractions to reduce cognitive load.

As I mentioned above, if our cognitive load is high, then this can make us more susceptible to experiencing the doorway effect.

Intentionally push back against background noise and multitasking. Decluttering your physical and mental environments creates the "visual air" your brain needs to maintain focus as you transition between spaces.

To reduce cognitive load, we have to try to limit the amount of information our brains have to juggle at once. 

There are a few things we can do to help with this, like decluttering our environments, prioritising one task at a time, and minimising background distractions like noise or multitasking. 

When we have less mental strain, it's easier to stay focused and remember our goals as contexts change, e.g., moving between rooms. 

So it helps minimise the possibility of becoming overwhelmed by new stimuli in the new space.

By simplifying what you're thinking about, you maintain a clearer sense of purpose as you transition from one place to the next.

Embrace the Doorway Effect: Forgetfulness as a Normal Cognitive Process

So, next time you find yourself walking into a room and drawing a blank on why you went there, remember—it’s not a sign of a failing memory. 

The Doorway Effect is something we all experience, a natural part of how our brains transition between environments, because it's processing new information and sensory inputs. 

Instead of feeling frustrated, think of it as your brain’s way of managing when adjusting to new environments or contexts.

Embrace it as a feature of the human condition, and apply strategies like mental rehearsal or reducing distractions to sharpen your focus over time.

FAQ:

Can depression cause memory loss?

When we are depressed, we can have increased levels of cortisol in our body. Cortisol is also known as the stress hormone and it interacts with the part of the brain where short-term memories are stored. People experiencing depression often report having brain fog and finding it difficult to concentrate, but this is not permanent and can lift once the underlying depression is treated.

Can anxiety affect your memory?

This is an interesting one as studies have shown that under some circumstances anxiety can enhance our memories, with the memories being more “emotionally tinted”. This makes sense as the anxiety stress response helps us to face life-threatening 

When we are anxious we go into the fight and flight state and this means that our bodies are flooded with adrenaline and cortisol. These hormones interact with our brains. 

Is forgetfulness a sign of stress?

Forgetfulness can be a sign of stress, because stress triggers the release of cortisol - a hormone that can interfere with memory formation and recall. Stress also often causes disrupted sleep and reduces our ability to focus. Both of these things affect the brain’s ability to encode, store, and retrieve information effectively. We can then end up in a vicious cycle where our difficulty in remembering tasks, conversations, or important events, reinforces our stress response which in turn impacts our memory

Is it normal to forget things as you get older?

It is normal to have some degree of forgetfulness as we age, and this is often referred to as age-related memory changes or mild cognitive decline. We can go some way to mitigating this by keeping our lives as mentally stimulating as possible and maintaining a healthy lifestyle. As we age, there are natural changes in the brain, which can impact our memories and make it more difficult to recall names, keep track of belongings, or remember certain events. While these changes are not usually severe enough to disrupt daily life, if you’re experiencing significant or persistent memory problems that are severe enough to disrupt your daily life then you should discuss this with your healthcare professional.

When is forgetfulness a concern?

Forgetfulness becomes a concern when it starts to significantly impact your daily living. Occasional forgetfulness is normal, but frequent and persistent memory lapses may indicate a more serious issue and it is worth visiting your health professional to discuss concerns and rule out the possibility of underlying medical conditions.

Is forgetfulness always dementia?

It’s very common to worry about dementia if we find ourselves becoming forgetful, but there are many reasons why we may be experiencing occasional memory lapses - for example, some medications can cause forgetfulness as a side effect. Dementia is a progressive condition that significantly impairs not only memory, but also thinking and daily functioning. If you have concerns that your daily living is becoming impacted by your forgetfulness then discuss them with your healthcare professional for reassurance.

About the author: Sarah Cosway is a BABCP-accredited Cognitive Behavioural Psychotherapist with over a decade of experience working in mental health, both within the NHS and in private practice. She offers tailored CBT in a compassionate, collaborative environment, empowering clients to build resilience and manage their mental well-being with confidence.

https://www.coswaycbt.co.uk

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