You have been working for hours when suddenly you realise you are starving.
Not slightly hungry. Shaky, irritable, unable-to-think hungry.
Or you realise you desperately need the toilet, despite apparently not needing it ten minutes ago.
You haven’t noticed being particularly tired all day, but suddenly you cannot do another thing. Someone asks you a perfectly reasonable question and you want them to stop talking. The lights seem too bright. Making dinner feels impossible.
Sometimes it happens emotionally too. You think you are coping reasonably well and then, seemingly from nowhere, you are overwhelmed, furious or crying.
It can feel as though your body has two settings:
Fine.
And:
Emergency.
This experience is often described by people with ADHD, and interoception may be one part of the explanation.
But the interesting question isn’t simply whether people with ADHD are “bad at noticing their bodies”.
The reality is considerably more complicated.
What is interoception?
Interoception is the process through which the nervous system senses and represents what is happening inside the body. It contributes to our awareness of things such as hunger, thirst, temperature, pain, bladder fullness, breathing, heart rate, fatigue and physiological arousal. It is also involved in the bodily information that contributes to emotional experience.
We often imagine this process as relatively straightforward.
The body needs food → you feel hungry → you eat.
The body needs rest → you feel tired → you stop.
But there are actually several things happening between a physiological change and a behavioural response.
A useful way to think about it is:
Body signal → noticing → interpreting → recognising importance → responding
And those are not the same ability. You might receive a bodily signal but not consciously notice it. You might notice something but not know what it means. You might correctly recognise that you are hungry but continue working. You might think, I really need some water, and forget the thought thirty seconds later. You might know that you are exhausted but still find it extraordinarily difficult to disengage from what you are doing.
This distinction matters enormously in ADHD.
Because sometimes the problem isn’t “I don’t know what my body needs.”
It is what happens between knowing and doing.
ADHD and interoception: what do we actually know?
There is growing research interest in interoception and ADHD, but it is important not to turn an emerging area of research into another ADHD certainty.
The evidence is not completely consistent.
One adult study found no significant difference between people with and without ADHD on objective and self-reported measures of interoceptive awareness. Another found poorer performance among adults with ADHD on a heartbeat-detection task.
More recent evidence strengthens the case that differences may exist. A 2025 systematic review of 17 articles found an overall pattern suggesting reduced interoception in ADHD and associations between lower interoception and greater ADHD-related difficulties, including inattention, impulsivity, executive dysfunction and emotional dysregulation. But the authors also emphasised important limitations in the research, including small samples and methodological issues.
A separate 2025 study found lower behavioural interoceptive accuracy and lower self-reported accuracy in adults with ADHD, while again cautioning that the sample was relatively small and further research is needed.
So I would be cautious about saying:
ADHD causes poor interoception.
A more useful question is:
What might make bodily information harder to notice, interpret, prioritise or respond to when you have ADHD?
That opens a much more interesting conversation.
This is a pattern I have encountered repeatedly in conversations with a large number of people with ADHD, both in my professional work and in my own experience of ADHD.
Your body may be sending the signal. It just isn’t winning the competition for your attention.
Imagine that you are completely absorbed in writing something. Your stomach begins sending relatively subtle signals. At the same time, your brain is dealing with ideas, words, emails, notifications, a deadline, an interesting problem and the fear that if you stop now you may never get back into this state of concentration.
Which signal wins?
Probably not your stomach.
Attention isn’t distributed equally across everything happening inside and outside us. And ADHD is fundamentally associated with difficulties regulating attention, not simply with an inability to pay attention.
When something is interesting, stimulating or urgent, attention can become extremely difficult to redirect.
This helps explain a phenomenon I frequently hear described as:
“I didn’t realise.”
But when we examine it more closely, sometimes the person did realise.
At 11:30 they thought:
I’m getting hungry.
At 11:45:
I’ll get something in a minute.
At 12:10 they stood up, saw an email and answered it.
At 1:20 they briefly remembered lunch again.
At 2:15 they were suddenly starving.
The hunger signal wasn’t necessarily absent.
It simply never became important enough to successfully interrupt everything else.
That is different.
Knowing what you need and acting on it are two different processes
This distinction is particularly important because otherwise interoceptive difficulties can become another way of blaming ourselves.
Why don’t I listen to my body?
Why can’t I look after myself properly?
But consider what responding to a simple signal such as hunger might actually require.
You have to notice it. Keep that information active. Decide to interrupt what you’re doing. Shift attention. Choose what to eat. Possibly prepare something. Then return to whatever you were doing before.
For somebody already struggling with task initiation, working memory, transitions, decision-making or attention regulation, “just eat when you’re hungry” may contain a surprising amount of executive functioning.
The same applies to going to the toilet, getting a drink, taking medication at the intended time, putting on another layer when cold or stopping work when exhausted.
The bodily need may be perfectly clear.
The transition required to meet it may be the difficult part.
Why does everything suddenly become urgent?
This is perhaps the strangest part of the experience. For hours, the signal isn’t strong enough to change behaviour. Then suddenly it is impossible to ignore.
Mild hunger becomes shakiness, nausea, headache or irritability. Tiredness becomes complete inability to think. A slightly full bladder becomes an emergency.
Early overstimulation becomes:
I need everyone to stop talking to me immediately.
I sometimes think of this as an interoceptive volume problem.
If the quieter signal doesn’t capture enough attention, the louder one eventually does. This is not a literal description of how the nervous system works. But it is a useful description of the lived experience.
The body whispered.
Something else was louder.
Eventually, the body shouted.
But what if I actually feel my body too much?
This is where simplistic discussions about interoception become particularly unhelpful. Interoceptive differences do not necessarily mean being disconnected from the body. Some people are acutely aware of bodily sensations. They notice changes in heartbeat, digestive sensations, pain, temperature or physiological arousal that other people barely register.
And interoceptive ability is not necessarily one single global capacity. Contemporary research increasingly treats interoception as multidimensional rather than as a simple ability that someone either has or doesn’t have.
You might be extremely sensitive to your heartbeat but regularly miss hunger. You might notice pain immediately but struggle to recognise fatigue. You might be very aware that something feels wrong in your body but have difficulty working out whether you are hungry, anxious, overstimulated, tired or becoming ill.
And your access to those signals may change. You may notice your body quite well on a quiet Sunday and barely at all during a demanding working day.
That suggests a different way of thinking about the problem.
For some people, it may be less about having poor body awareness and more about having inconsistent access to bodily information.
That difference matters.
Sometimes we notice the signal and override it
There is another possibility that receives far less attention. What if the problem isn’t that you never learned to hear your body? What if you learned not to respond to it?
Think about how many messages we receive throughout childhood and adulthood:
Wait until break.
Finish this first.
Stop fidgeting.
You can’t be tired already.
Everyone else is managing.
You only just went to the toilet.
Don’t make a fuss.
And later:
I just need to get through this meeting.
I’ll eat after I finish this.
I can rest at the weekend.
Other people have much more on their plate than I do.
For people who have spent years masking neurodivergent difficulties, pushing through discomfort can become a highly developed skill. In fact, some very capable adults have built much of their lives around overriding internal information.
They can work despite exhaustion. Socialise despite overload. Continue performing despite anxiety. Keep meeting expectations despite their body repeatedly signalling that the current level of demand is unsustainable.
From the outside, this can look like resilience. And sometimes it is. But resilience and chronic self-override are not the same thing.
After enough years, not noticing a signal and noticing it but automatically dismissing it can begin to feel remarkably similar.
This may also help explain why emotions sometimes seem to come from nowhere
Interoception isn’t only about food, water and toilets.
Bodily information is deeply involved in emotional experience. Research on interoception has long linked the representation of internal physiological states with subjective feelings and emotional awareness.
This gives us another interesting question. What if the emotion didn’t actually arrive suddenly? Perhaps the conscious recognition of it did.
There may have been earlier information:
Your shoulders were tightening. Your breathing had changed. Your heart rate was increasing. Noise was becoming more irritating. Your cognitive flexibility was reducing. You were becoming less able to tolerate interruption.
But none of those signals became:
I am becoming overwhelmed and I need to change something.
Until eventually someone asks where the scissors are and you want to scream.
This is why “I went from 0 to 100” isn’t always an accurate description.
Sometimes you went:
20 → 35 → 50 → 70 → 100.
You just didn’t have conscious access to the earlier numbers.
The problem with “listen to your body”
“Listen to your body” is one of those pieces of advice that sounds wise until you examine what it assumes.
It assumes the body speaks clearly. It assumes you notice the message. It assumes you understand what it means. And it assumes that once you understand it, you can easily respond.
None of those things is guaranteed.
This is why telling somebody who routinely forgets to eat to eat when you’re hungry may be surprisingly ineffective. If hunger isn’t a reliable prompt, hunger cannot be the only system responsible for initiating eating.
Similarly:
If tiredness is recognised only at exhaustion, don’t make exhaustion responsible for initiating rest.
If thirst becomes noticeable only when you have a headache, don’t make thirst responsible for reminding you to drink.
If overwhelm becomes apparent only when you are close to shutdown or explosion, don’t make overwhelm responsible for telling you when to reduce stimulation.
Sometimes external structure needs to do what internal signalling does not reliably do. That isn’t a failure of intuition. It is good design.
Make the body less responsible for reminding you
The aim does not have to be to become perfectly attuned to every internal sensation. For many people with ADHD, a better starting point is to reduce how much depends on noticing the right signal at exactly the right moment.
Lunch can happen because it is lunchtime, not because hunger has finally become unbearable.Water can live beside the place where you already work rather than relying on remembering to go and find it. A break can be attached to finishing a meeting. Medication can be connected to an existing morning action.
Transitions can become opportunities for a very brief internal check:
Hungry? Thirsty? Toilet? Cold? Hot? Tense? Tired? Overstimulated?
Not every strategy needs to involve another alarm. In fact, many people with ADHD become extraordinarily skilled at dismissing alarms. Often it is more effective to attach body care to things that already happen.
This is something I often explore in coaching. Not simply “How can you remember to take breaks?” but:
Where in your existing day could noticing yourself naturally happen?
That is a very different question.
Learn what your body’s early warning system actually looks like
Another useful approach is to stop searching for what hunger, fatigue or overwhelm are supposed to feel like.
Instead, investigate what they look like in you.
One question I particularly like is:
What does your body do five minutes before the emergency and what was it doing two hours earlier?
The answers can be surprising.
Perhaps your first recognisable sign of hunger isn’t a rumbling stomach. It is suddenly finding everybody irritating.
Perhaps fatigue appears first as procrastination.
Perhaps you start scrolling because your brain has already run out of capacity for deliberate effort.
Perhaps overstimulation initially looks like becoming unusually controlling because reducing uncertainty is your brain’s attempt to reduce incoming demand.
Perhaps you know you’re becoming overwhelmed when you suddenly cannot make tiny decisions.
These patterns matter because they move the point of intervention backwards.
Instead of asking:
What do I do when I’ve crashed?
you can gradually learn to ask:
What tends to happen before I crash?
That is often part of what good ADHD coaching can help with. The coach isn’t there to tell somebody what their body feels like. The useful work is often much more investigative: noticing patterns across real situations, separating bodily awareness from executive-function barriers, identifying what repeatedly precedes overload, and designing supports around the person’s actual nervous system rather than around how they think they should function.
Over time, the person develops a more detailed map of themselves.
Learning your body’s dialect
Perhaps this is a more useful goal than simply trying to “improve interoception”. Become curious about your particular pattern.
Which signals do you notice easily?
Which ones do you notice late?
Which do you notice but routinely ignore?
Which disappear when you are interested in something?
What happens when you are under pressure?
Does your body become easier or harder to read when you are anxious?
What does tiredness feel like before exhaustion?
What does hunger feel like before you become irritable?
What does overwhelm feel like before you desperately need everybody to leave you alone?
And perhaps most importantly:
Which bodily needs are currently dependent on you remembering, noticing and initiating something at exactly the right moment?
Those are often the places where external support can make life significantly easier.
The goal isn’t necessarily to become someone who effortlessly listens to every whisper from their body. It is to understand your own system well enough that your body doesn’t always have to scream before it gets your attention.
So perhaps instead of asking:
“Why am I so bad at looking after myself?”
there is a more useful question:
“At what point do I notice what my body has been telling me and what makes that information important enough for me to act on?”
Because for some people with ADHD, the problem may not be that the body isn’t communicating.
It may be that, until the message becomes urgent enough, everything else is louder.
