Reference: Tate, J., Lindsey, A., Wilde, L. (2025). Photobiomodulation for Cognitive Function and Wellness in Firefighters: A Pilot Study. Photobiomodulation, Photomedicine, and Laser Surgery. DOI: 10.1177/15578550251362096

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Why This Study Matters

Firefighters endure extreme stress, traumatic events, and irregular schedules that can lead to:

• Poor sleep and chronic fatigue

• Persistent pain

• Mood dysregulation

• PTSD symptoms

• Cognitive decline

Traditional wellness strategies—counseling, fitness, therapy—help, but may not fully address the neurological impact of sustained stress.

Researchers at the University of Utah investigated a new, non-invasive approach: transcranial-intranasal photobiomodulation (itPBM) — delivering near-infrared light to the brain through the nose and scalp using the Vielight Neuro Gamma to promote cellular health, reduce inflammation, and support brain network function.

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How the Study Worked

• Participants: 16 active-duty male firefighters (ages 25–58, mean ~43)

• Device: Vielight Neuro Alpha

  • Wavelength: 810 nm near-infrared light

  • Modulation: 10 Hz

  • Configuration: Four transcranial LED clusters targeting default mode network hubs + one intranasal LED targeting ventral prefrontal cortex

• Schedule:

  • 20 minutes per session

  • 3–4 sessions per week

  • 8 weeks total (~25 sessions)

• Measurements: Standardized tests for PTSD symptoms, pain interference, mood disturbance, fluid cognition, and reintegration readiness.

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Results at a Glance

Compliance: Over 90% attendance rate
Adverse Effects: None reported

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What This Means

The therapy led to statistically and clinically significant improvements in:

• PTSD symptom severity

• Daily life pain interference

• Problem-solving, memory, and cognitive flexibility

• Emotional stability

• Readiness for social reintegration

The effect sizes were moderate to large, meaning these improvements are likely noticeable in real-world settings.

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Why It’s Exciting

• Safe & drug-free — no reported side effects

• Time-efficient — 20 minutes per session

• Portable & scalable — possible integration into fire stations, clinics, and wellness centers

While this was a small, uncontrolled pilot, it’s a strong signal that larger randomized controlled trials are warranted.

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“If tPBM can improve resilience, cognition, and recovery in firefighters, its potential for other high-stress professions—like healthcare workers, police, and veterans—is enormous.”