The Concussion Diagnosis Nobody Runs

Most concussion protocols are built around a single assumption: the brain being assessed was regulated before impact. Clear baseline, clean injury, clean recovery curve.

That assumption fails constantly — and it fails hardest for exactly the population most likely to be sitting in the assessment room.

What the New Research Actually Shows

A 2026 review out of the University of Mississippi and University of Southern Mississippi — led by athletic training researcher Corbit Franks, with Jeffrey Parr and Mary King — synthesized the peer-reviewed literature on ADHD and sports concussion. The findings: athletes with ADHD are 1.6 to 2.5 times more likely to sustain a concussion in the first place, and once injured, they take four to six days longer to recover. ADHD affects an estimated 4.2% to 8.1% of young athletes — which means this isn’t an edge case a protocol can afford to ignore. It’s a meaningful share of every roster.

Four to six days sounds small until it’s your return-to-play timeline, your athlete’s semester, or your program’s liability exposure. And days-to-recover is just the visible number. It says nothing about why.

Why It Happens: The System Was Already Working Harder

ADHD is not a behavior problem. It’s a differently regulated dopamine and norepinephrine system — the same neurotransmitters a concussion disrupts. A brain that was already running a tighter margin on executive function, attention regulation, and impulse control before impact doesn’t get a fresh, symmetrical injury. It gets a disruption stacked on top of an existing regulatory pattern, in the exact chemical systems least able to absorb it.

Trauma and autism follow a related but distinct logic. Chronic stress and unresolved trauma keep the autonomic nervous system running in sympathetic activation — the body’s threat-response state — for months or years before any head injury occurs. Autistic sensory processing differences mean the nervous system is already interpreting proprioceptive and interoceptive signal differently at baseline. None of that is dysfunction. It’s a different starting point. But a protocol built for one starting point, applied to all of them, will consistently misread the second and third groups — either under-treating a slower recovery as non-compliance, or over-attributing baseline traits to the injury itself.

What This Looks Like in Practice

This isn’t theoretical for us. Every concussion patient who has come through our own Brain Health Assessment — a documented head injury, a dysregulated brain on intake — tested at moderate or major neurotransmitter deficiency. Not mild. Not occasional. Every one. A meaningful share of that group also carried a prior ADD or ADHD diagnosis going into the injury. Treating all of them against a single generic recovery curve would have missed exactly the compounding pattern the Franks review now has literature behind.

The Brain Health Assessment tests dopamine, serotonin, GABA, and acetylcholine directly, specifically because a symptom checklist can’t tell you whether fog and irritability are new, pre-existing, or both stacked together. Only a baseline measurement can.

The Protocol Difference

Ninety-nine of our concussion patients have retaken the assessment after an initial baseline. Of the 57 who enrolled in a personalized protocol before retesting, 89.5% showed a measurable drop in symptom score, averaging a 28.7% reduction. Of the 42 who retested without enrolling, only 54.8% improved, averaging a flat 4.3% change. That gap holds regardless of what the patient’s nervous system looked like before injury — because the protocol is built to correct the system that’s actually there, not the generic one a checklist assumes.

Dynamic Brain Healing and NeuroFascial Release address five systems together: neurotransmitter restoration, autonomic regulation, cranial and fascial decompression, inflammation reduction, and targeted brain nutrition. For a patient with pre-existing ADHD or trauma load, that baseline autonomic and neurotransmitter picture isn’t a footnote — it’s the starting line the protocol is actually built from.

What to Screen For Instead

If you’re an individual managing your own recovery, a parent evaluating a return-to-play decision, or a program building post-injury protocol: a clean scan and a symptom checklist were never going to catch this. Screening for pre-existing ADHD, trauma history, and neurodivergent processing patterns before you interpret post-injury symptoms is not extra diligence. Given what the data now shows, it’s the baseline.

Start with the Brain Health Assessment — the only way to know what system you’re actually correcting.

Sources

• Research Highlights Concussion Challenges for Athletes with ADHD (Franks, Parr, King) — University of Mississippi — https://olemiss.edu/news/2026/07/research-highlights-concussion-challenges-for-athletes-with-adhd/index.html
• Attention-Deficit/Hyperactivity Disorder as a Predictor of Prolonged Functional Recovery From Sports-Related Concussion in High School Athletes — PubMed — https://pubmed.ncbi.nlm.nih.gov/39480804/
• How Does ADHD Affect Athletes’ Concussion Risk? — U.S. News — https://www.usnews.com/news/health-news/articles/2026-07-22/how-does-adhd-affect-athletes-concussion-risk

Brain Health Assessment improvement figures (89.5% / 54.8% / 28.7% / 4.3%) are Fascia Training Institute’s own internal outcomes data: 99 concussion patients (documented head injury, dysregulated brain on intake, a subset with a pre-existing ADD/ADHD diagnosis) who retook the Brain Health Assessment after an initial baseline of moderate-to-major neurotransmitter deficiency (57 enrolled in a personalized protocol before retesting, 42 not enrolled), drawn from assessment records 2021–2023. Proprietary practice data, characterized by Simone Fortier from her own case records — not a peer-reviewed or externally published study.