Interoception is the sense of your body’s internal state — heartbeat, breath, hunger, temperature, tension, the feeling in your chest before you know you’re upset. It’s a genuine sensory channel, and people differ in it as much as they differ in eyesight.
Low interoceptive awareness isn’t a metaphor for being out of touch with your feelings. It’s a functional difference, and it explains a great deal of what otherwise looks like avoidance.
What low awareness looks like
Not noticing you’re hungry until you’re unwell. Discovering you’re exhausted only when you stop. Being asked what you’re feeling and having no access to an answer — not withholding, genuinely blank.
Learning from other people that you were upset. Not registering arousal, or registering it only once it’s substantial. And a specific one that brings people here: not knowing whether you want something until after you’ve agreed to it.
Where it comes from
Learned suppression. If your internal states were consistently treated as wrong, inconvenient or excessive, attending to them wasn’t useful and attention went elsewhere. That’s a skill that atrophies.
Trauma. Where the body was a source of danger or pain, disconnection is protective — and it’s one of the most reliable ways a nervous system keeps someone functioning. Going away is the version of this that shows up in intimacy.
Constitutional variation. Some people simply have lower interoceptive accuracy, and it is associated with alexithymia — difficulty identifying and describing emotions — which is common in autistic people and isn’t a deficiency of feeling.
And busyness. Attention is finite. A life run at capacity leaves none for the internal channel, and a great many people discover their interoception is fine once there’s room for it.
Why it matters for intimacy
Almost everything in this area depends on it.
Boundaries are felt before they’re decided — the no arrives as a physical event, and if you can’t detect it you’ll discover it afterwards. Desire frequently begins as a small bodily signal that’s easy to miss. Arousal is an internal state before it’s anything else. And knowing what you actually like requires being able to detect a difference between one thing and another.
It’s trainable
This is the useful part, and it responds to practice more reliably than most things in this field.
Start with the easy signals. Not emotions. Temperature, hunger, needing the bathroom, tiredness. Check three times a day and answer specifically.
Locate rather than name. Instead of asking what you feel, ask where. Chest, throat, stomach, jaw, hands. Location is considerably more accessible than emotional vocabulary and gets you to the same place.
Notice the difference between two things. Before and after a meal. Before and after a difficult conversation. Comparison is easier than absolute description.
Use a body scan, briefly and often. Two minutes daily beats twenty minutes weekly.
Movement helps. People who do something physical and attentional — yoga, swimming, weights done slowly, dance — reliably develop this faster than people working on it purely in conversation.
A caution
For people with a trauma history, or with panic, turning attention inward can be destabilising rather than calming — attention to the heartbeat is exactly what panic feeds on.
If that describes you, do this with a clinician rather than alone, and expect to go slower.