John Roach, Esq. | July 18, 2026 | California Law
San Francisco Mild TBI Lawyer: There Is Nothing “Mild” About a Mild Traumatic Brain Injury
Every mild TBI client I have ever represented has said some version of the same sentence: “Everyone keeps telling me I’m fine, but I’m not.” The scan was normal. The screening came back okay. They went back to work. And for years, insurance companies have used exactly that gap — between what the tests show and what the person lives — to pay these cases pennies.
Which is why a recent perspective in the New England Journal of Medicine stopped me cold. In “The Invisible Load of Cognitive Symptoms” (N Engl J Med, June 27, 2026), clinical neuropsychologist Jan Stubberud, Ph.D., describes the most disabling feature of cognitive symptoms not as dramatic memory failure, but as “the constant, invisible effort required to function” — the all-day internal work of reorienting, self-monitoring, and compensating that patients perform just to appear normal. It is the truest description I have read of what my mild TBI clients live with. As a San Francisco attorney handling concussion injury claims in San Francisco since 2009, I want to walk through what this article says, and why it matters for anyone fighting an insurer over an “invisible” brain injury.

A Patient Who Looks Fine on Paper
Stubberud opens with a patient every brain injury lawyer will recognize. Her MRI is unremarkable. Her labs are normal. She arrives on time, converses fluently, and does well enough on a brief cognitive screen to reassure the clinicians in the room — and, for a moment, even herself.
Then she describes an ordinary day. She forgets why she opened her laptop. She rereads the same paragraph without retaining it. She loses conversations when two people talk at once. She can handle one appointment, one errand, one conversation — but not a series of them. By afternoon, Stubberud writes, her mind works like an overloaded computer: nothing fails outright, but everything slows, stutters, and finally stalls.
What disables her is not the lapses themselves. It is the hidden machinery she runs all day to work around them — the internal checklists, the mental notes rewritten again and again, the deliberate silence in meetings so no one sees her lose the thread, the exhaustion after ordinary social contact, the guilt when her child asks a simple question and the answer will not stay in her mind long enough to give it. That, in the article’s framing, is the invisible load — a real disability that slips past medicine’s usual measurements.
Capacity vs. Bandwidth: The Distinction That Changes Everything
The article’s central insight is that patients and testers are, without realizing it, measuring two different things. What a standard evaluation measures is capacity — what a person can do briefly, with structure, under ideal conditions. What patients are describing is bandwidth — what they can sustain across a real day of competing demands, interruptions, emotion, time pressure, pain, poor sleep, and fatigue.
A quiet room, one task at a time, a supportive examiner, and a person giving maximum effort for a short burst: that is the most favorable cognitive environment a human being will ever perform in. An actual Tuesday is nothing like it. Stubberud is direct on the consequence: someone can perform adequately on a ten-minute test and still be unable to manage a day of multitasking, interruptions, and real-world stressors. Slowed processing, difficulty navigating complexity, and reduced cognitive endurance may never register on a brief screen — while severely impairing a person’s ability to work, parent, and live. Some conditions, he notes, reduce bandwidth without ever producing measurable deficits on standard tests at all.
The person is not imagining it, and the test is not lying. They are measuring different things.
“Nothing Is Wrong” — How a Normal Result Becomes a Denial
Here is where the article goes somewhere I did not expect a medical journal to go. Stubberud traces what happens after a brief screen comes back normal: the patient is told, implicitly or explicitly, that nothing is wrong — and often hears something worse: that it’s all in her head. Treating cognitive symptoms as either objective impairment or nothing, he writes, creates a false binary in which a normal result becomes a final judgment about the patient instead of one piece of information about her.
And then the article names the downstream harm in one clause that every injured person’s lawyer should frame and hang on the wall: employers and insurers may read the absence of a diagnosis as the absence of a disability. That is not my legal spin on a medical article. That is the New England Journal of Medicine identifying, in its own pages, the exact mechanism by which the concussion cases I handle get denied.
There’s a moral dimension too. Patients whose disabilities are invisible get subjected to a special kind of judgment — if nothing is wrong, why can’t you just push through? Stubberud calls that judgment an ethical failure, not just a clinical one. Anyone who has watched an adjuster imply that a client is exaggerating knows precisely what he means. And patients themselves, he observes, don’t arrive saying they have reduced cognitive endurance. They say: I can’t think. I’m not myself. I’m scared. Many are grieving an identity built on being capable — which is as precise a description of the non-economic damages in a brain injury case as I have ever read in the medical literature.
What the Article Does Not Say
Fairness matters here, because this piece is careful and the post should be too. Stubberud is clear that not every cognitive complaint is pathologic — ordinary variation, aging, and genuinely extraordinary demands account for plenty of lapses, and normal test results provide meaningful context rather than nothing. The article also covers cognitive symptoms across many conditions — depression, insomnia, chronic pain, autoimmune disease, cancer treatment, medication effects, and concussion and other acquired brain injuries among them.
Neither point weakens an injury case; both sharpen it. The right standard, in medicine and in a claim, is the one the article proposes: a normal screen is information, not a final answer. And in a crash case, the “other contributors” an insurer loves to point at — the poor sleep, the pain, the medications, the mood changes — are rarely independent of the injury. They are usually its documented consequences. The interacting contributors are not an alternative explanation. In an injury case, they are often the causal chain itself.
How I Prove the Invisible Load
Everything in my approach to San Francisco brain injury lawyer work is about making bandwidth loss visible from the angles a testing room cannot see — and this article effectively hands the playbook a medical foundation:
- The questions the tests never ask. Stubberud urges clinicians to assess bandwidth directly: what happens when the person is interrupted, how long before performance drops, how long recovery takes after a demanding task, which environments trigger collapse, and what the functional cost is at work and at home. Those are the questions I put to treating physicians, to before-and-after witnesses, and to my own clients at intake — because they surface the disability the screen missed.
- The paper trail of compensation. The article catalogs the workarounds patients adopt — externalized memory through lists and alarms, pacing, simplified routines, demanding work shifted to mornings, negotiated accommodations. Every one of those leaves evidence: calendars, employer records, family testimony. A life that now runs on alarms and written plans is the invisible load, documented — and a life run that way is itself a diminished life, even when it “works.”
- Comprehensive evaluation as good medicine, not litigation theater. When symptoms are reshaping a patient’s life despite normal screening, the article supports referral for full neuropsychological evaluation — to map strengths and vulnerabilities and guide rehabilitation. When I arrange that workup for a client, I am following the standard the medical literature itself recommends.
This is how a case the insurer calls “mild” becomes a case the insurer pays. It is why I recovered $750,000 in an underinsured motorist arbitration for a single mild TBI from a rear-end collision — a case first valued at a small fraction of that on exactly the “tests were normal” logic this article dismantles. The same invisible-load reality runs through the most serious cases I handle, from a pedestrian brain injury to a construction brain injury — and through injuries that develop quietly, like a subdural hematoma, in the days after a crash. My results for Bay Area brain injury clients reflect what these cases are worth when the invisible is made visible.

If This Describes You or Someone You Love
Three things to start today — built directly on the bandwidth framework:
- Keep a load diary, structured the way a neuropsychologist would ask. Not just “had a headache” — record what you attempted, what interrupted you, when performance dropped, how long recovery took, which settings (noise, multitasking, social demands) triggered collapse, and what you had to skip afterward. Two weeks of this documents your bandwidth the way no ten-minute screen can.
- Tell your providers the whole truth — including the workarounds. Patients minimize. “I’m managing” goes into the chart as “doing well.” Describe the alarms, the lists, the strategic silence, the naps, the avoided tasks. The compensations are the injury. The chart should read like your life, not your best day.
- Do not accept “the tests were normal” as a verdict. From an adjuster or anyone else. The medical literature now says plainly that a reassuring screen is one piece of information — not proof that nothing is wrong, and not the end of the story.
Talk to a San Francisco Mild TBI Lawyer Who Takes “Mild” Seriously
Stubberud closes with the point his whole article builds toward: the invisible load is not a metaphor — it is made of the hours a person spends every day reorienting, self-monitoring, compensating, and recovering, and failing to recognize it only adds the burden of stigma. If a crash, fall, or jobsite injury left you carrying that load while everyone insists you look fine, I would be glad to talk with you. As a trial-tested attorney, I build these cases to be tried — which is what makes insurers pay them fairly. For Spanish-speaking clients, I handle everything personally as a direct Spanish-speaking attorney — no interpreter, no handoff. Call (415) 851-4557 or schedule a free consultation. ¿Habla español? Solicite una consulta gratuita aquí.
Frequently Asked Questions
“Mild” is a medical classification based on how the injury initially presented — not a description of its impact on your life. Many people classified with mild TBI experience months or years of headaches, fatigue, memory problems, and reduced capacity for work and daily life.
As described in a 2026 New England Journal of Medicine perspective, capacity is what a person can do briefly, with structure, under ideal conditions — which is what standard testing measures. Bandwidth is what a person can sustain through a real day of interruptions, multitasking, stress, pain, and fatigue. A brain injury can reduce bandwidth severely while capacity still tests as normal.
Possibly yes. Brief screening measures short bursts of single-task performance in ideal conditions, and the medical literature recognizes that some conditions reduce day-to-day cognitive bandwidth without ever producing deficits on standard measures. A case can be built on evidence of the daily-life impact — witnesses, work records, treating-provider documentation, and comprehensive evaluation.
Not necessarily. Returning is not recovering — many mild TBI survivors return with accommodations, lists and alarms, reduced output, and severe fatigue. Documenting what the return actually costs you is often some of the strongest evidence in the case.
Generally two years from the date of injury, but if a government entity is involved — a Muni vehicle, a city property condition — a written government claim is generally required within six months. Symptoms that emerge or persist over time make early legal advice especially important.
It depends on the injury’s impact on your work, daily life, and future — not on the word “mild.” I have recovered $750,000 for a single mild TBI from a rear-end collision after the insurer initially offered a small fraction of that. Every case is different, and a free consultation is the right way to evaluate yours.
No. California civil courts do not decide injury cases based on immigration status, and your discussions with your attorney are confidential.