When most people hear ADHD, they picture a child who can’t sit still.
But the “H” in ADHD — hyperactive — doesn’t tell the whole story.
If we were being precise, we’d call it AD H/I D — because that category is really hyperactive/impulsive. And nearly half of those symptoms have nothing to do with running or climbing.
Four of the nine hyperactive/impulsive symptoms are about impulse control, not movement:
- Blurting out answers before a question is finished
- Difficulty waiting their turn
- Interrupting or intruding on others
- Talking excessively
These are challenges with inhibiting responses, tolerating wait time, and regulating social interaction.
An adult who sits calmly in meetings but struggles with interrupting colleagues, making impulsive purchases, or saying things they later regret could absolutely meet criteria for ADHD — even without visible hyperactivity.
This is especially important for:
- Adults who think, “I can’t have ADHD — I sit still just fine.”
- Girls and women whose hyperactivity is often more internal than external.
- Anyone who has been told, “You don’t look hyper.”
So What Is Impulsivity? 🧠
Impulsivity isn’t about being reckless or careless.
It’s about a shortened pause between urge and action.
There is a pause.
It’s just much smaller.
I think about impulsivity in three categories:
1️⃣ Impulsive Behaviors
The action happens before there’s time to fully consider consequences.
This can look like:
- Interrupting
- Making a sharp comment when upset
- Clicking “buy now”
- Pushing social limits
It’s not a lack of caring. It’s a reduced decision window.
2️⃣ Impulsive Feelings ❤️
People with ADHD don’t have different emotions — they often have more difficulty regulating and filtering them.
- Internal: Big, fast emotional reactions
- External: Expressing more emotion than the setting calls for
This is why ADHD is often mislabeled as “too sensitive” or “dramatic.”
3️⃣ Impulsive Deciding ⏳
Many people with ADHD have low tolerance for ambiguity.
Thinking through options can feel uncomfortable — so the brain says, “Just decide.”
This can lead to:
- Rushed decisions
- Difficulty weighing long-term consequences
- Changing directions quickly
It’s not carelessness. It’s relief-seeking.
The Elephant & The Rider 🐘
Social psychologist Jonathan Haidt, PhD describes the rational brain as a rider sitting atop an elephant (emotional brain).
- The rider = rational brain
- The elephant = emotional brain
We assume the rider is in charge.
But most of the time, the elephant is steering.
For people with ADHD, it can feel like the elephant isn’t very open to feedback from the rider.
The goal isn’t to shame the elephant.
It’s to strengthen communication between the two.
Why This Matters ✨
- If you’re a parent wondering about ADHD for your child:
Your child’s interrupting, emotional intensity, or rushed decisions may represent neurodevelopmental differences in impulse regulation.
- If you’re an adult wondering about ADHD for yourself:
You may have spent years thinking you’re “too much,” “bad with money,” or “bad at relationships.” There may be a neurobiological explanation for those patterns.
ADHD doesn’t always look like physical hyperactivity. Sometimes it looks like verbal impulsivity, emotional intensity, or decision-making patterns that feel hard to control.
Understanding the pattern is the first step toward changing it.
If this resonates for you or your child, we’re here to help you sort through whether ADHD might be part of the picture.
You don’t have to figure it out alone. 💛
