What Anxiety Actually Looks Like in Young Kids (Hint: Not Always Worry)
Stomach aches, anger, perfectionism, clinginess — the surprising ways anxiety shows up before age 10, and what calms it.
By Hey Little Brain editors
In 30 seconds
- Childhood anxiety often shows as anger, somatic complaints, or perfectionism — not worry.
- Naming the feeling reduces its grip (Dan Siegel: 'name it to tame it').
- Predictability and breath work outperform reassurance.
It rarely looks like worry
When adults picture an anxious child, they picture a chewed lip and a quiet voice. In real life, especially under age 10, anxiety often shows up as:
- Stomach aches and headaches with no medical cause, often Sunday night or before school.
- Anger and "behavior issues" — the fight in fight-or-flight.
- Perfectionism. The kid who erases the page raw, or refuses to start because it won't be perfect.
- Sleep disruption. Trouble falling asleep, or waking at 3 AM.
- Clinginess to one parent, suddenly.
- Avoidance. "I don't want to go" for activities they used to love.
If you've been arguing with a child you secretly suspect is anxious — pause. The behavior may be the symptom.
What's happening in the brain
Daniel Siegel's "Whole-Brain Child" framing is useful: when a child is overwhelmed, their upstairs brain (the rational, planning prefrontal cortex) goes offline, and the downstairs brain (amygdala, fight/flight) takes over. Logic and consequences don't work in that state. You're talking to a brainstem.
The job is to get the upstairs back online before you teach anything.
What works (in the moment)
- Co-regulate, don't lecture. Sit beside them. Slow your own breathing visibly. Their nervous system mirrors yours.
- Name it. "Looks like your body is feeling really big right now." Siegel calls this *name it to tame it* — labeling an emotion activates the prefrontal cortex.
- Box breathing. 4 in, 4 hold, 4 out, 4 hold. Trace a square on their palm.
- Move. A walk around the block. Carrying something heavy. Push-ups against the wall. Physical output discharges the stress chemistry.
What works (long-term)
- Predictability. Anxious kids do better when they know what's coming. Visual schedules. Same routine each night. Warning before changes.
- Less reassurance, more skill. Constant "you're fine" actually feeds anxiety — it teaches the child they need someone to say it. Instead: "You're feeling worried. What's one thing that helps?"
- Sleep, exercise, daylight. Boring but unbeatable.
- Screen-free wind-down. The hour before bed is sacred. No iPad. A simple page to color, a chapter book, a quiet conversation.
When to get help
If anxiety is interfering with school, friendships, sleep, or daily life for more than a few weeks — talk to your pediatrician or a child therapist. Cognitive behavioral therapy for kids has strong evidence and is often short-term. You're not making it a big deal by getting help. You're modeling that mental health gets the same care as a sprained ankle.
You don't have to fix every feeling. You just have to be the calm next to it.
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