Why Your Child Can’t "Feel" Their Own Body

We all know the five basic senses: sight, smell, taste, touch, and hearing. If you’ve been in the special needs world for a while, you probably know about the "hidden" 6th and 7th senses (vestibular and proprioception). But there is an 8th sense that is the most important one of all for emotional regulation, yet almost nobody talks about it. It is called Interoception.

If you have ever wondered why your child seems to go from "perfectly fine" to a "total meltdown" in 0.5 seconds, or why they seem to have a high pain tolerance, or why they can never tell you why they are upset, the answer usually lies in their Interoception.

What exactly is Interoception? Think of Interoception as a giant "internal thermostat." While your other senses tell you what is happening outside your body, Interoception tells you what is happening inside. It is the sense that allows you to feel your heart racing, your stomach growling, your muscles tensing, or your bladder feeling full.

In a typical brain, these signals are like a "whisper." Your stomach gives a tiny growl, and you think, "Oh, I’m a little hungry, I’ll grab a snack." But for many kids with autism, ADHD, or sensory processing differences, their internal thermostat is "glitchy."

Some kids are undersensitive. Their body is sending signals, but the brain isn't picking them up. They don't feel the "whisper" of hunger; they only feel the "shout" of starvation. By the time their brain realizes something is wrong, they are already in a state of physical distress, which looks like a meltdown to us. Other kids are oversensitive, where every tiny heartbeat or stomach gurgle feels like an emergency, leading to constant anxiety.

The "Invisible Fizz" Demonstration To understand what your child is going through, imagine an Alka-Seltzer tablet in a glass of water (just like the image for this post). When you drop the tablet in, it starts to fizz.

If your Interoception works well, you feel those first few bubbles. You realize you are getting frustrated or tired before the glass overflows. You can take a break or ask for help.

But if your Interoception is "numb," you don't feel the bubbles. The water keeps fizzing and rising, but you are completely unaware. Then, suddenly, the water hits the top and spills over the sides. To an outsider, it looks like a sudden explosion over nothing. To the child, it’s a surprise to them, too. They didn't see the "fizz" coming until it was too late.

Why this changes everything When we understand Interoception, we stop asking our kids, "Why are you crying?" or "What is wrong?" Those questions are actually impossible for them to answer because they literally do not know what is happening inside their skin. They feel the "spillover," but they didn't feel the "fizz."

Instead of focusing on the behavior (the crying), we start focusing on the "fizz." We become their external Interoception. We might say, "I see your hands are squeezed into fists. Does your body feel tight?" or "It’s been four hours since you ate; let’s give your stomach some fuel."

How to "Tune In" the 8th Sense The good news is that Interoception is a skill that can be practiced. We can help our kids "turn up the volume" on their internal whispers.

First, we use Body Mapping. During quiet times, we point out physical sensations that have nothing to do with emotions. "Oh, look, my skin feels cold, I have goosebumps. Do you have goosebumps?" or "My heart is beating fast because I just ran up the stairs. Can you feel your heart?" We are teaching them the "language" of their body when they are calm.

Second, we use The Check-In. Instead of asking "How do you feel?", which is a big, scary question, we ask about specific parts. "How does your stomach feel? Is it empty or full?" "How do your muscles feel? Are they soft like a pillow or hard like a rock?"

Third, we Normalize the Signals. We talk about our own internal signals out loud. "I’m yawning, that’s my body telling me it needs sleep." This models that everyone has internal signals and that we have to listen to them to stay okay.

The Ultimate Daily Win The goal of Interoception work isn't to stop meltdowns immediately. The goal is to help your child eventually say, "My tummy feels tight," instead of hitting a wall.

Last week, my son was playing a game and I saw his breathing get a little faster. I said, "I hear your breathing getting loud. Does your chest feel tight?" He stopped, thought about it, and said, "It feels like bubbles." He took a breath and walked away from the game for a minute.

That wasn't just a win; that was a miracle. It was the first time he caught the "fizz" before the "spill."

Be patient with this "8th sense." It is a long road to help a child connect with their own skin, but it is the most powerful tool you can give them for a lifetime of self-regulation. You are doing the deep work today that will make their tomorrow so much easier.