05/27/2026
One of the questions I get most in the office is "Why does my kid still have these primitive reflexes?" The answer almost always traces back to one of two windows.
The most common is a concussion in the first two years of life. A kid hits their head β sometimes hard enough the parents remember, sometimes a fall nobody made much of at the time β and the brain development that was happening at that exact moment slows down. The primitive reflexes that should have integrated as part of that development don't quite get there. They stay retained. They show up later as a focus, posture, or emotional regulation issue.
The second is illness during the crawling phase. We develop at hyper speed in those first two years, and the act of crawling is one of the primary inputs the brain uses to integrate reflexes and build coordination between the hemispheres. When a kid gets a viral illness during that window and stops moving for two weeks β even just two weeks β the brain misses input it needed.
The reflex stays.
The pattern shifts.
Neither of these is anyone's fault.
Concussions happen.
Viruses happen.
But once we know the window matters, we can find what got left behind in it.
That's what the exam is for β and we use real diagnostic tools to do it, from sensory testing on the Senaptec station to eye tracking, balance, and primitive reflex screens.
If you've been wondering for years why your kid is still struggling with focus or coordination, that's the work.
β Dr. Cooper Dykstra, Brain Health and Chiropractic, Sioux Falls