"Get them outside" is sometimes treated as folk wisdom — pleasant but optional. The neuroscience and child-development literature of the last 30 years says it is closer to a load-bearing wall. The brain a child arrives at school with has been shaped by what their body has been doing. The implications are mostly cheerful: the cheapest things — running, climbing, hanging, spinning — are also the most useful.
Healthbooq helps families take movement seriously without making it stressful.
Why Movement Is Brain Work
The brain develops in interaction with what the body is doing. Three of the most important systems for later learning — the vestibular system, the proprioceptive system, and the cerebellum — are all primarily wired through movement.
- Vestibular (inner ear, balance, sense of where "up" is) — calibrated by being moved through space: rocked, carried, swung, spun, tumbled. By age four, a child who has had abundant vestibular input typically reads more fluently, sits still more easily, and tolerates classroom transitions better than a child who has not.
- Proprioception (joint sense, body awareness, the unconscious knowledge of where your limbs are) — built through pushing, pulling, climbing, lifting, and bumping into things.
- Cerebellum — once thought to be only about coordination, now strongly implicated in language, attention, and emotional regulation. It develops through complex, varied movement.
The "movement is just exercise" framing misses about half of what's actually going on.
What an Infant Brain Is Up to in Movement
The first 18 months are the foundation. Tummy time builds neck strength, but more importantly, it gives the visual system a horizontal world rather than the upward view of someone permanently on their back. Reaching for a rattle is the first hand-eye co-ordination loop, repeated thousands of times. Crawling — and most children do crawl on hands and knees, at least briefly — provides cross-body coordination that lights up both hemispheres at once.
Two unhelpful trends in modern infant care:
- Long stretches in seats, bouncers, and swings, which restrict the range of movement an infant brain is built to expect
- Clothes and surfaces that make floor exploration unpleasant, so babies are picked up rather than left to move
The corrective is gentle: more time on a play mat, fewer hours in containers, a willingness to let them squirm and reach.
Vestibular Activities, Practically
Vestibular input is the most under-rated of all early brain inputs. It comes from movement that changes the orientation of the head:
- Being lifted up, swung between two adults, gently spun
- Rolling down a slope (children love this, and it does real work)
- Swings — slow rocking, then bigger — for as long as they enjoy them
- Hanging upside down briefly, supported, on an adult's lap
- Sliding head-first into a beanbag (adult presence)
- Climbing and looking down
A child who is frequently asking to be spun, swung, or hung upside down is not being naughty — they are seeking the input their brain wants. Twenty minutes a day of this kind of activity makes a noticeable difference in regulation, attention, and sleep.
Proprioceptive Activities (a.k.a. "Heavy Work")
Proprioceptive input — joint and muscle feedback — is calming and organising. Useful for the wound-up child, the bedtime transition, and the morning before nursery. The shorthand from occupational therapy is "heavy work":
- Pushing a laundry basket of toys across the room
- Pulling a wagon up a small slope
- Carrying something genuinely heavy for them — a watering can, a bag of recycling
- Bear-walking, crab-walking, log-rolling
- Squeezing into a tight space (nest of cushions, bottom of a pop-up tunnel)
- Big firm hugs
A surprising amount of toddler dysregulation softens within five minutes of one of these.
Bilateral Coordination
Activities that use both sides of the body in coordinated ways — crawling, swimming, climbing a ladder, riding a balance bike, drumming, kicking a ball with both feet alternately — wire connections between the hemispheres of the brain through the corpus callosum. Bilateral coordination shows up later as:
- Smoother handwriting (one hand stabilises the page while the other writes)
- Reading fluency (the eye-tracking that reads "left to right, then return" needs both hemispheres talking)
- Catching, hitting, and most sports
The simplest way to encourage it under five is to keep climbing equipment, bikes, balls, and things to swim or splash in within the weekly routine.
Executive Function and Movement
Executive function — the planning, inhibition, and working-memory bundle that academics later depend on — develops faster in children who get plenty of:
- Rule-based physical play (tag, "what's the time, Mr Wolf?", musical chairs)
- Strategic, mildly risky physical games where you have to plan a route
- Self-directed play in which they pick a goal and pursue it
Adam Diamond's research at UBC has shown effects on executive function from things as simple as adapted versions of Simon Says, Red Light Green Light, and traditional dance. Children who play these games regularly show measurable benefits in inhibition and cognitive flexibility tests.
Movement as Mood Regulation
Vigorous activity changes the chemistry of the body in well-documented ways: lower cortisol, higher endorphins, more BDNF (a growth factor in neurons). For young children, the practical version of this is:
- The morning meltdown often eases after 20 minutes of running outside
- The 5 p.m. witching hour eases with a chase, a dance, or a quick trip to the garden
- Children who have not had enough movement are more emotional, not less
If a young child seems "not themselves," they are sometimes just under-moved.
Movement and Later Academics
The links between movement and later school performance are not subtle:
- Visual tracking — required to read across a line — is a vestibular skill
- Sitting still in a classroom is mostly a proprioceptive skill
- Spatial reasoning, the foundation of mathematics, builds through navigating space (climbing, balancing, building, finding your way)
- Fine motor control for writing develops in fingers that have spent years building, sorting, kneading, and pulling
The practical implication: the parent who is "investing in their child's education" by sitting them down with a worksheet at three is, on the evidence, doing less for the child than the parent who takes them to the park to climb.
What Restricts Movement (Worth Cutting)
A few common modern arrangements that quietly limit the input a young brain wants:
- Long stretches in car seats, strollers, and high chairs without breaks
- Indoor "soft play" with no real surfaces — fine occasionally, not a substitute for park
- Screen time that displaces movement time (this is the bigger of the two effects of screens)
- Adult anxiety that prevents climbing, hanging, or rough-and-tumble that is well within developmental range
- Clothes and shoes that limit movement (stiff shoes are particularly common)
You don't need to remove all of these. Each one cut, even partially, returns hours of movement to a small life.
A Realistic Daily Movement Diet
Not a prescription — a sketch:
- 60+ minutes of unstructured movement, mostly outside
- Some vestibular input (swing, slide, roll, spin) most days
- Some heavy work, especially before tricky transitions
- Some bilateral activity (climbing, biking, swimming)
- Music and dance most days, even briefly
- A weekly visit somewhere with rougher terrain
A child whose week looks like this is doing the most consequential brain-development work available to a parent — and almost none of it costs anything.
Key Takeaways
The brain that emerges at five from a childhood of climbing trees, hanging upside down, and getting itself thoroughly tired in the garden is not just stronger physically — it is wired differently. Movement is not preparation for cognition. It is part of cognition. The hour outside isn't competing with the hour at the table; it's making the hour at the table possible.
