Article

It Looks Like Stubbornness. Some Kids Don’t Feel Their Own Thirst.

Some children don't feel thirst, heat or cold the way others do. That inside sense has a name, interoception, and it is a skill you teach. Two occupational therapy assistants share the cues they use on hot days.

It Looks Like Stubbornness. Some Kids Don’t Feel Their Own Thirst.

The water bottle comes home from camp full again. Her face is red, and she swears she isn’t thirsty. An hour later, a sock sets off a meltdown. It is easy to call that stubborn. To us, it doesn’t look like stubbornness at all.


Hydration’s Impact on Sensory Processing Disorder
One key insight shared involves the critical role of hydration in managing Sensory Processing Disorder. For children with this condition, starting treatment sessions with a drink of water can significantly impact their nervous system regulation. A book mentioned in the transcript emphasizes hydration as the number one tip for addressing regulation and behavior challenges in these children. By ensuring adequate water intake, parents and therapists can help improve overall behavior in children with Sensory Processing Disorder. This means that maintaining proper hydration levels is a simple yet effective strategy for supporting children with Sensory Processing Disorder in regulating their nervous system and enhancing their daily functioning.

FROM THE VIDEO

Key moments from Sensory Smart Summer: Interoception Tips and Tools That Work, with Rachel and Jessica of All Things Sensory by Harkla:

  • 03:36Some kids miss the signs that they are hot, thirsty or need a break.
  • 07:28Set a timer every 30 to 40 minutes for water and shade.
  • 11:54Three water bottles turn a hidden amount into one you see.

Common questions from parents

What is interoception?
It is the sense that tells you what is happening inside your body. Hungry, thirsty, full, too hot, too cold or needing the bathroom. Worry and a racing heart count too. The hosts of All Things Sensory by Harkla say no one taught them this sense in school.
Why won’t my child drink water when it’s hot?
In some children the thirst signal is quiet. The hosts see this in kids who under-respond to sensory input. They get hot and sweaty and don’t notice. To us, that doesn’t look like a choice. Use outside cues, like a timer for water breaks, until her own signal gets louder.
How do I help my child notice hunger and fullness?
Set times to eat, and close the kitchen in between. A child who grazes all day never gets to feel hungry or full. When hunger shows up, name it for her. “Your tummy is rumbling. That is hungry.”
Should my child be evaluated?
If you are worried, talk with your child’s doctor or an occupational therapist. A free screener is a starting point, not a diagnosis. Only a professional evaluation gets formal supports like an IEP or 504 plan. The same goes if you suspect a vision, hearing or medical cause.
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Water bottle home full again, and she swears she isn't thirsty? For some kids, the inside signal for thirst and heat is quiet. Here is how to teach it.

Why Doesn’t She Feel Thirsty?

There is a sense most of us were never taught about. It is called interoception. It is how your body tells you what is going on inside. Hungry. Thirsty. Full. Too hot. Needing the bathroom. Worried.

Rachel and Jessica are occupational therapy assistants. They host the show All Things Sensory by Harkla. They say no one taught them this sense in school, either. They point parents to Kelly Mahler and Gwen Wild, who focus on it.

In some children, these inside signals are quiet. The hosts see it in kids who under-respond to sensory input. These kids get hot and sweaty and don’t notice. In winter, their fingers turn blue, and they don’t feel cold. Their brain and body are not making the link.

Other children are the opposite. The summer sun feels too bright, so they stay inside. For more on how sensory differences look at home, see our guide to sensory differences.

So when she says she isn’t thirsty, she is telling you the truth as she feels it. Your child isn’t broken. Her brain is learning differently.

When she says she isn’t thirsty, she is telling you the truth as she feels it.

Laura Lurns · Learning Success expert
It Looks Like Stubbornness. Some Kids Don’t Feel Their Own Thirst.

How Do You Teach a Child to Notice Her Body?

The hosts treat interoception as a skill. You teach it the way you teach most things. You give it a name, and you practice.

  • Name it in the moment. “Your cheeks are red and your shirt is wet. That is what too hot feels like.”
  • Read about it. The hosts like a simple picture book from Sensory Explorer, I Am Learning to Listen to My Body. It covers feeling too hot, feeling hungry and needing the bathroom.
  • Play it out. A stuffed bear gets too hot at the park. What does he need? A drink and some shade.
  • Check in at set times. Ask, “How does your body feel right now?”

The hosts say stories and play help it stick. Over time, the goal is for her to check in on her own.

The hosts also tie this sense to how kids handle big feelings. One small study looked at a related skill, body awareness. Brown and colleagues (2021) found that body awareness and emotional control went together in children. That shows a link. It does not show that one causes the other.

If big feelings are the hardest part at your house, our free course The Overly Emotional Child walks through them.

Key takeaways

  1. A sense few were taught: Interoception tells your child she is thirsty, hungry, hot or cold.
  2. A quiet signal: Some kids get hot and sweaty and never feel it happening.
  3. Lend her a cue: Timers, extra water bottles and set meal times stand in for the signal.

What Helps on a Hot Day?

Until her own signal gets louder, you lend her one from the outside. Here are the cues the hosts use.

  • Set a timer. Every 30 to 40 minutes outside, she comes in. She drinks water and rests in the shade for a few minutes.
  • Use more than one bottle. One host drinks from three bottles, each a different color. When all three are empty, she knows she drank enough. Try it with your child.
  • Set meal times. A child who grazes all day never gets to feel hungry or full. Set times to eat, and close the kitchen in between. “The kitchen opens at 3:30 for snack.”
  • Write it down for others. You often see her fading before she feels it. Her words slow down or slur. Give camp or school a short note on what to watch for and what to do.
  • Ask before adding electrolytes. The hosts note that a sweaty child needs salt, too. A child who eats mostly packaged foods likely gets plenty already. They say to talk with your doctor first.

What about water and mood? The hosts put water first on their list for a calmer child. They credit a book whose name they could not recall. So we treat it as their practice, not a finding. Still, a hot, thirsty child is rarely at her best. That part needs no study.

We wrote more on sensory challenges and play at home.

Until her own signal gets louder, you lend her one from the outside.

Laura Lurns · Learning Success expert

You want your child safe and calm in her own body. The old habit of calling every hard moment bad behavior stands in the way. You are already your child’s first teacher. Is schoolwork hard for her too? The free Learning Difficulties Analysis asks what you see at home. It is a starting point, not a diagnosis: start the free analysis here.

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A screener is a starting point, not a diagnosis. If your child might need formal accommodations (an IEP or 504 plan), or you suspect a vision, hearing or medical cause, pursue a professional evaluation too. That is the only route to those supports.

· Learning Success expert Writes about the learning brain for parents who want plain answers. Every article is grounded in current neuroscience and classroom practice.