263 ‒ Concussions and head trauma: symptoms, treatment, and recovery | Micky Collins, Ph.D.

KEYPOINTS

• 01

  A concussion is an energy crisis at the cellular level, not a structural injury.

  Collins explains that when the brain shifts inside the skull, neuron membranes stretch. Potassium leaks out of the cell, raising demand for glucose so ATP can pump it back. At the same moment calcium floods in, causing vasoconstriction and reduced cerebral blood flow. Demand rises just as supply falls, a metabolic mismatch. The cells don't die; they run less efficiently. Standard imaging shows no structural change, and he says no reliable biomarker exists yet or is likely soon.

• 02

  There are six types of concussion, and treatment depends on which system is failing.

  Collins lists cognitive fatigue, vestibular (the central brain pathways, not the inner ear), ocular (the eyes working as a team), migraine, anxiety/mood and, less often, cervical (neck). Patients can have one or all six. In his clinic's data the most common profile is anxiety, then migraine, vestibular, ocular and cognitive fatigue. His job, he says, is to find which system is 'decompensated' and target it.

• 03

  On-field dizziness predicts a slow recovery better than loss of consciousness.

  Collins challenged Attia to name the strongest on-field predictor of long recovery. Attia guessed loss of consciousness, which was wrong. Dizziness was about six times more predictive of a recovery lasting a month or more, and fogginess ('feeling one step behind') came second. He notes that athletes who lose consciousness are always pulled from play, while dizzy athletes often keep playing.

• 04

  Playing through symptoms dramatically lengthens recovery.

  In a retrospective study of about 300 kids, those removed from play right away recovered in an average of 18 days. Those who kept playing for just 15 minutes after symptoms began took 44 days. A follow-up dose-response analysis found that each minute played through the injury added roughly seven to eight days. He admits it wasn't randomized but says the gap is too large to ignore.

• 05

  Personal history shapes which pathway a concussion takes.

  A history of migraine sends patients down the migraine pathway with less force. Car sickness predicts vestibular problems. Lazy eye or strabismus predicts ocular problems, and prior anxiety predicts the anxiety profile. Attia calls it 'concussive reserve.' Age matters too: high school athletes recover slowest, college athletes next and professionals fastest.

• 06

  Females are more vulnerable and recover more slowly.

  Girls are more likely to be concussed than boys. Collins points to neck strength and hormones, and girls are about six times more likely to have migraine and car sickness. About 60% of his clinic's patients are female. His group has shown that menstrual cycles change after head injury and is starting a women's study on hormonal effects.

• 07

  Rest is the wrong treatment; targeted exposure is the right one.

  The old advice was to rest an injured, energy-starved brain. Collins says that makes things worse. Anxiety is treated by exercise and regular sleep, which raise parasympathetic tone, and vestibular problems are treated by retraining. His clinic uses aggressive 'exertion therapy' plus exposure to busy environments. He stresses that this must be guided by a specialist, because the wrong approach can make patients worse.

• 08

  Early specialist care is the strongest predictor of good outcomes, but late cases are still treatable.

  Across all the factors studied, being seen in the clinic within seven days best predicted recovery. Red flags such as an intracranial bleed must be ruled out first. Collins still says patients one to three years out can usually be treated effectively, and he follows patients every three to four weeks until they're normal.

• 09

  Medications are secondary and target the root problem, not downstream symptoms.

  He tries behavioral treatment first. He avoids trazodone for sleep because the insomnia stems from nervous-system arousal. When drugs are needed, he says sertraline can help both vestibular and anxiety profiles, and he sometimes uses tricyclics, Wellbutrin, Effexor or escitalopram, often with an in-house psychiatrist. Untreated arousal can ripple outward. Attia asks about hypogonadism as one downstream example.

• 10

  Evidence on long-term brain disease is unsettled; the CTE picture suffers from selection bias.

  Collins cites work from Grant Iverson's group, linked to Mass General, showing some relative increase in anxiety but no clear tendency toward dementia, Lewy body or other neurodegeneration after concussion. CTE brain-bank studies, he says, rely on people who donated brains because they had problems. UPMC is about two and a half years into a controlled study using neuropsych testing, imaging, lumbar punctures, CSF biomarkers and sleep studies. He also says there is no compelling evidence that APOE4 raises concussion risk.