Diseases & Longevity · File 36

Moderate-severe TBI. The event that reopens neurocognitive risk — for life.

Moderate-severe traumatic brain injury is recognized by the Lancet Commission on Dementia Prevention (2020, updated 2024) as one of the established risk factors for dementia. After the acute event, survivors carry altered neurocognitive trajectories, persistent neuroinflammation, and greater risk of cognitive decline and dementia in following years-decades (Plassman 2000; Sariaslan 2016). Longevity medicine operates in secondary prevention of the cerebrovascular cluster, chronic neuroinflammation, and amplified comorbidities.

Why TBI is an inflection event of brain longevity

Moderate-severe traumatic brain injury is not just an acute event. It's an inflection point of the neurocognitive trajectory that reopens sustained vulnerabilities: persistent neuroinflammation, blood-brain barrier alterations, greater post-traumatic epilepsy risk, depression, anxiety, sleep disturbances, subjective cognitive decline, and — critically — greater risk of dementia years-decades later. Plassman et al. (Neurology 2000) documented this association in veterans.

The Lancet Commission on Dementia Prevention (2020, updated 2024) formalized it: TBI figures among the 14 modifiable or established risk factors for dementia. It's not niche. It's not optional. The moderate-severe TBI survivor carries neurocognitive risk that compounds with the rest of their profile — and secondary prevention of the cerebrovascular cluster, comorbidity management, and chronic neuroinflammation is where longevity operates. Coordination with neurology and neuropsychology is standard.

TBI is not an event that closes. It's one that's followed.
Dementia decades later

The neurocognitive weight, in numbers

Data come from Lancet Commission, Plassman Neurology, Sariaslan PLOS Medicine, and meta-analyses. They confirm moderate-severe TBI is a sustained neurocognitive risk factor.

  • Lancet 2024 risk factor

    14 factores demencia

    Lancet Commission on Dementia Prevention (2020, updated 2024) places TBI among modifiable or established dementia factors. Its prevention and post-event management are public neurocognitive health interventions.
    — Livingston et al., The Lancet 2020/2024

  • Post-TBI dementia risk

    Décadas siguientes

    Prospective studies in veterans (Plassman 2000) and population cohorts (Sariaslan 2016 PLOS Medicine) document increased dementia and cognitive decline risk in moderate-severe TBI survivors in following years-decades.
    — Plassman et al., Neurology 2000

  • Post-event cluster

    Cognición + ánimo + sueño

    Post-TBI cluster includes sleep disorders, depression, anxiety, PTSD, chronic pain, post-traumatic epilepsy, subjective cognitive decline. Management requires sustained multidisciplinary approach.
    — Maas et al., Lancet Neurology 2017

  • Persistent neuroinflammation

    Sostenida post-evento

    After the acute event, neuroinflammation persists for months-years — microglial activation, blood-brain barrier alteration, elevated cytokines. It's one of the mechanisms linking TBI to sustained neurocognitive risk.
    — Loane et al., Trends Pharmacol Sci 2010

Chap. 03 · Multidomain post-TBI

The post-TBI cluster that longevity medicine complements

Moderate-severe TBI survivor carries amplified neurocognitive, cerebrovascular, and mental health vulnerabilities — that's where the brain longevity trajectory operates.

  • Added cerebrovascular risk

    Cluster compuesto

    TBI survivor carries added cerebrovascular risk — blood-brain barrier alteration + sustained inflammaging + prior comorbidities. Intensive cluster management (ApoB, BP, glucose, sleep, exercise) reduces compound neurocognitive risk.
    — Lancet Neurology 2017

  • Post-TBI mental health

    Depresión / ansiedad / TEPT

    Depression, anxiety, PTSD, and sleep disturbances are highly prevalent post-TBI. Management is psychiatry and neuropsychology competence — their impact on neurocognitive trajectory is direct. Coordination is standard.
    — Bombardier et al., JAMA 2010

  • Neurocognitive rehabilitation

    Sostenida en el tiempo

    Structured neurocognitive rehabilitation (neuropsychology, occupational therapy, speech therapy per indication) is the most relevant post-event intervention. Longevity medicine complements it, doesn't replace it.
    — Cicerone et al., Arch Phys Med Rehabil 2019

  • Lancet factor prevention

    14 factores modificables

    After TBI, intensifying management of other modifiable Lancet factors (hearing loss, depression, hypertension, obesity, alcohol, smoking, social isolation, physical inactivity, air pollution, others) adds to compound risk reduction.
    — Livingston Lancet 2024

What we don't offer — and what we do

Wellness Care does not manage acute TBI or primary neurocognitive rehabilitation. Initial evaluation, neurosurgery when indicated, intracranial hypertension management, ICU decision, structured clinical neuropsychology, and multidisciplinary neurocognitive rehabilitation are exclusively neurosurgeon, neurologist, neuropsychologist, and rehabilitation team competence. What we do: secondary prevention of the cerebrovascular cluster, sustained inflammaging management, management of the 14 Lancet factor comorbidities, and coordination with the neurocognitive team.

We evaluate: moderate-severe TBI survivors (1-3+ months post-event or any later time) with unoptimized cerebrovascular cluster, subjective cognitive decline, unmanaged post-event mental health, or those wanting to intensify compound neurocognitive risk reduction. Coordination with neurologist, neuropsychologist, psychiatrist, and rehabilitation specialist when there's specific indication.

Neurosurgeon and neurologist save the event. Neuropsychologist and rehabilitation specialist work function. Longevity medicine works sustained trajectory.
How we measure it

How post-TBI trajectory
is addressed at Wellness Care

Secondary prevention of the cerebrovascular cluster + inflammaging management + intensification of modifiable Lancet factors. In coordination with neurology, neuropsychology, and rehabilitation.

Advanced biomarkers

21 specialized panels across 8 clinical categories — biological age, inflammaging, metabolic profile, functional hormonal, microbiota. The quantitative layer.

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Functional medicine

Shared root causes — mitochondrial dysfunction, inflammaging, neuroendocrine dysregulation — before organ pathology.

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Bioregulatory medicine

Autonomic regulation, HRV, stress response. The functional trajectory that precedes clinical diagnosis.

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The Longevity Program

How this assessment integrates into the full program — from initial valuation to individualized protocol design under medical judgment.

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Featured evidence

Key evidence supporting this approach

Four publications — Lancet Commission, Plassman Neurology, Sariaslan PLOS Medicine, Maas Lancet Neurology.

«El TCE es uno de los 14 factores de riesgo modificables o establecidos para demencia identificados por la Lancet Commission on Dementia Prevention 2020/2024.»
The Lancet · 2020/2024
Livingston et al., 2020/2024
Factor riesgo demencia
«El TCE moderado-severo se asocia con mayor riesgo de demencia en sobrevivientes — efecto sostenido en estudios longitudinales.»
Neurology · 2000
Plassman et al., 2000
Riesgo neurocognitivo
«Cohortes poblacionales suecas confirman asociación entre TCE moderado-severo y demencia décadas después del evento.»
PLOS Medicine · 2016
Sariaslan et al., 2016
Cohorte poblacional

Frequently asked questions about moderate-severe TBI and neurocognitive trajectory

The most recurrent questions about TBI — Lancet risk factor, post-event trajectory, rehabilitation, and why longevity medicine complements the neurocognitive team.

01

Why does TBI increase dementia risk?

Through a combination of mechanisms:

· Persistent neuroinflammation — microglial activation, elevated cytokines
· Blood-brain barrier alteration
· Diffuse axonal damage
· Acceleration of pre-existing neurodegenerative processes
· Greater cerebrovascular vulnerability

The Lancet Commission on Dementia Prevention (2020, updated 2024) recognizes it as a risk factor among the 14 modifiable or established.

Effect sustains years-decades post-event (Plassman 2000; Sariaslan 2016).

02

What can be done after a moderate-severe TBI?

The most relevant interventions:

· Structured neurocognitive rehabilitation — neuropsychology, occupational therapy, speech therapy per indication
· Mental health management — depression, anxiety, PTSD, sleep
· Intensive secondary prevention of the cerebrovascular cluster — ApoB, BP, glucose, Lp(a)
· Management of comorbidities from the 14 Lancet factors (hearing loss, hypertension, obesity, alcohol, smoking, isolation, inactivity)
· Structured neurological follow-up
· Addressing sustained inflammaging

Primary rehabilitation belongs to neuropsychologist and rehabilitation specialist.

03

When should I consult?

An integrated assessment is worthwhile if:

· You're a moderate-severe TBI survivor (1-3+ months post-event or any later time) with:
  · Unoptimized cerebrovascular cluster
  · Subjective cognitive decline
  · Unmanaged post-event mental health
· Want to intensify compound neurocognitive risk reduction

The assessment complements neurologist, neuropsychologist, psychiatrist, and rehabilitation specialist — does not replace them.

The event that's followed

TBI is not an event that closes. It's one that's followed. Longevity medicine operates on that trajectory.

Secondary prevention of the cerebrovascular cluster, inflammaging management, intensification of the 14 modifiable Lancet factors, and coordination with the neurocognitive team — that changes sustained trajectory.

TBI survivor or added risk?

Book an integrated neurocognitive assessment

We evaluate clinical history, cerebrovascular profile (ApoB, BP, glucose, Lp(a)), inflammaging (hsCRP, GlycA, NLR), functional neuroinflammation when indicated, cognitive screening (MoCA, others), mental health, sleep, and cardiometabolic cluster. Does not replace neurologist, neuropsychologist, or rehabilitation specialist — complements them.

Book post-TBI neurocognitive assessment