The Science of Make-Believe: What Your Kid's Wild Imagination Is Actually Building

My kids converted our living room into a fully operational hospital for stuffed animals last Tuesday. There was a surgical suite behind the couch, a recovery ward on the hardwood floor (two bath towels, very sterile), and a billing department that charged Monopoly money at rates that would make an actual hospital blush. The stuffed giraffe with the wobbly neck was apparently the most critical case. They had been at it for forty-five minutes while I tried to answer emails two feet away. Eventually I gave up and just watched.

I have a neuroscience background. I've read the literature on pretend play. I know the difference between a child "just playing" and a child building neural scaffolding in real time. But watching my own kids argue about the giraffe's prognosis, I had to remind myself: this is the work.

Because here's what we consistently get backwards about creative activities: we treat them as the reward for finishing the real stuff, when the evidence suggests they might actually be the real stuff.

What Imaginative Play Is Actually Training

When researchers examine what pretend play, reading aloud, and open-ended creative activities do to the developing brain, they keep landing on the same outcomes: executive function, working memory, and something called theory of mind.

Theory of mind is the capacity to understand that other people have thoughts, feelings, and perspectives that differ from your own. It is foundational for empathy, social reasoning, and even reading comprehension. And it develops, in significant part, through pretend play -- through inhabiting characters, negotiating storylines, and holding in mind the "rules" of an imaginary world that doesn't exist yet.

A 2025 national randomized controlled trial of public Montessori preschool programs found that Montessori children scored significantly higher on measures of theory of mind and executive function at the end of kindergarten compared to children in control classrooms (Lillard, 2025). The Montessori method is built on open-ended creative work: children choose their activities, work at their own pace, engage in extended uninterrupted play, and collaborate without constant adult direction. The effect sizes exceeded a fifth of a standard deviation -- which the researchers noted is large by the standards of school-based intervention research. That is not nothing.

The study is clear, but your kid didn't read the study. What they're doing is arguing about the stuffed giraffe's prognosis and quietly getting better at understanding other minds.

The Surprising Science of Reading Aloud

If imaginative play is one lane of creative development, shared reading aloud is another. And the data here is frankly more striking than I expected.

A 2025 study published in the journal Intelligence by Batini and colleagues ran three independent cluster-randomized controlled trials in Italian elementary and middle schools. Treatment schools replaced one hour of standard language instruction per day with teacher-led reading aloud sessions over four months. Children in the reading-aloud condition showed significantly stronger development on two measures of general intelligence compared to controls, across all three independent trials (Batini, 2025). The results were consistent enough that the Tuscany regional government introduced one hour per day of reading aloud in public schools.

One hour. Of someone reading out loud to children. Boosting general cognitive development beyond what could be explained by language exposure alone.

The mechanism matters here. Reading aloud is not just vocabulary input. It is the reader doing something inherently creative: inflecting voices, building suspense, making narrative choices in real time. Children follow as co-creators of the story, building mental imagery, anticipating what comes next, inhabiting characters alongside the reader. That is imaginative activity. That is creative development in action. It just looks like story time before bed.

Worth noting: the Batini (2025) effects held across elementary and middle school. If your eight-year-old still wants you to read to them, that is not regression. That is a good use of everyone's time.

Moving, Making, and Mental Health

There is a third dimension of creative development we under-discuss: the body.

Dance, drama, active physical play, and the particular brand of running-around-while-narrating-an-elaborate-story-to-yourself that seven-year-olds specialize in -- these movement-based creative activities show up in the mental health literature in ways that deserve more attention.

A 2024 systematic review and meta-analysis examined the effects of physical activity on mental health in children and adolescents across dozens of studies (Liu et al., 2024). Physical activity interventions were significantly more effective than control conditions at reducing anxiety, depression, and emotional distress in typically developing kids. That includes the kinds of physical activity that look a lot like creative play: imaginative outdoor games, movement-based dramatic scenarios, and the sheer expressive physicality of children who are fully absorbed in a made-up world.

The evidence suggests that bodies in motion are brains getting healthier. When your child is stomping around the backyard pretending to be a dinosaur, they are not just burning off steam in some inconvenient way. They are doing something genuinely therapeutic.

What This Actually Looks Like on a Wednesday

None of this means you need to enroll your child in six enrichment programs or start building elaborate art stations at 6:45 a.m. (I have tried this. The children were unimpressed.)

What the research supports is more accessible than that.

Read aloud longer than you think is necessary. The Batini (2025) findings held through middle school. If your older child still gravitates toward being read to, lean into it. The cognitive benefits don't expire.

Let creative play run long, even when it is inconvenient. Forty-five minutes of stuffed animal hospital means forty-five minutes of theory of mind, executive function, and narrative reasoning. The email can usually wait another twenty minutes.

Do not separate movement from creativity. Dance, outdoor imaginative play, and physically expressive dramatic scenarios all count. You do not need an art room or a music teacher. You need some floor space and some tolerance for enthusiastic noise.

Trust open-ended, low-tech materials. The Montessori classrooms in the Lillard (2025) study were not fancy. They were full of things children could manipulate, combine, and use in ways adults hadn't scripted. Blocks. Playdough. Cardboard boxes. The magic was the approach, not the budget.

The Part I Keep Coming Back To

My five-year-old, Milo, was recently diagnosed with ADHD. His attention in structured, externally directed tasks can look scattered in ways that are hard to watch. But in the middle of an elaborate imaginative game? He is locked in. He remembers every character, holds the entire narrative arc in his head, negotiates every plot point with ferocious consistency for hours at a stretch.

The brain science on this makes sense: intrinsically motivated creative activity engages attentional systems differently than externally imposed tasks. His brain during pretend play is not struggling. It is working exactly as designed.

I want to be clear: pretend play is not a treatment for ADHD, and ADHD is complex, individual, and requires proper support -- Milo has a wonderful developmental pediatrician, and if you are navigating a similar diagnosis, that is the conversation to have with your own provider.

What I am saying is that creative development is not the soft, optional material we schedule in around the edges of real learning. The evidence from Lillard (2025), Batini (2025), and Liu et al. (2024) points toward something more fundamental: imagination, creative expression, and movement are core mechanisms of cognitive growth, emotional health, and social development.

The stuffed giraffe surgery in my living room is, technically, developmentally appropriate.

I'm counting it.