Together We're Stronger

Light Therapy, Brain Health & the Growing Interest in Photobiomodulation

Light Therapy, also known as Photobiomodulation (PBM), is a non-invasive approach that uses specific wavelengths of red and near-infrared light to support cellular function and brain health.

Devices such as those developed by Vielight use carefully controlled light delivered through LED-based headsets and intranasal applicators. Unlike UV light, which can damage tissue, red and near-infrared light are able to penetrate safely through the scalp and skull to reach underlying tissue without causing heat damage.

The therapy is painless, drug-free, and designed to work at the mitochondrial level — the energy-producing structures inside our cells. Researchers are exploring how this may help support energy production, blood flow, inflammation regulation, and the brain’s natural repair processes.

 

At Marshalling Brain Injuries Alliance, we are committed to sharing balanced, evidence-informed information about emerging approaches that may support people living with brain injuries, cognitive challenges, and neurological conditions.

 

One area receiving increasing scientific attention is Photobiomodulation (PBM) — more commonly known as red and near-red light therapy.

 

While red light therapy has been explored for years in areas such as wound healing and inflammation, research has shown that specific wavelengths of light also influences brain function, neural activity, and cognitive health.

 

What Is Photobiomodulation?

Photobiomodulation uses specific wavelengths of red and near-infrared light to interact with cells in the body.

 

In brain health applications, the device developed by Vielight deliver's near-infrared light:

  • Transcranially (externally through the skull) 
  • Intranasally (through the nasal cavity) 

The goal is to allow light to reach blood vessels and brain tissue where it may support cellular processes.

 

Unlike therapies that rely on medication or invasive procedures, PBM is non-invasive and designed to stimulate natural biological mechanisms.

 

The Science Behind It

One of the key areas of interest in photobiomodulation is its effect on the mitochondria — often referred to as the “powerhouses” of cells.

 

Research discussed by Vielight and other scientific groups, show's that near-infrared light :

  • Increase production of ATP (cellular energy) 
  • Improve oxygen utilisation 
  • Support blood flow 
  • Help regulate inflammation 
  • Influence neural signalling and communication 

Research shows that light therapy can  help support brain cells that are under stress or functioning inefficiently.

 

This has led to growing interest in PBM within neurological and cognitive health research.

 

Brainwaves & Neural Networks

A widely discussed study published in Nature Scientific Reports investigated the effects of intranasal-transcranial photobiomodulation on brain activity using EEG (electroencephalography).

 

The study reported measurable changes in neural oscillations after a single 20-minute session, including:

  • Reduced delta and theta activity, frequencies often associated with fatigue and “brain fog” 
  • Increased alpha, beta, and gamma activity, linked to attention, processing, and cognitive performance 
  • Improved “global efficiency” within neural networks — meaning communication between different regions of the brain became more efficient 

Researchers used graph theory analysis to examine how different brain regions communicated with each other, suggesting that PBM may influence network organisation and neural connectivity.

 

Importantly, this does not mean PBM is a cure or guaranteed treatment, but it does highlight why interest in this area is rapidly growing.

 

Why This Matters for Brain Injury & Cognitive Health

People living with traumatic brain injury (TBI), repetitive head impacts, cognitive decline, neurological symptoms, or suspected CTE often report issues such as:

  • Brain fog 
  • Fatigue  
  • Memory difficulties 
  • Reduced concentration 
  • Mood changes 
  • Sleep disruption 

These symptoms can have a profound impact on daily life, relationships, work, and mental wellbeing.

 

As a result, there is increasing interest in therapies that may support brain function, neuroplasticity, circulation, and cellular health.

 

Photobiomodulation is currently being explored in relation to:

  • Traumatic Brain Injury (TBI) 
  • Cognitive decline and dementia 
  • Neurodegenerative disease research 
  • Mental health and mood regulation 
  • Fatigue and recovery 
  • Brain performance and resilience 

However, it is essential to approach this area responsibly and with realistic expectations.

 

A Balanced & Responsible Approach

At Marshalling Brain Injuries Alliance, we believe strongly in sharing information responsibly.

 

Photobiomodulation:

  • Is not a cure for brain injury, dementia, or CTE 
  • Should not replace professional medical advice or treatment 
  • Requires further large-scale, long-term research 
  • May not be suitable for everyone 
  • Can produce different results between individuals 

Emerging science should be explored with curiosity, but also with honesty and caution.

 

Our role is not to make exaggerated claims, but to help people understand what research is taking place and what supportive options may exist.

 

Supporting Informed Choices

One of the biggest frustrations within the brain injury community is the lack of accessible information about emerging therapies and supportive approaches.

 

Many individuals and families are left trying to navigate complex scientific information alone.

 

Part of our work is helping people:

  • Understand emerging research 
  • Access evidence-informed educational resources 
  • Explore supportive therapies responsibly 
  • Feel empowered to ask informed questions 

We believe individuals deserve access to balanced information so they can make decisions that are right for them.

 

Community Support Access

As part of our wider support work, we are also able to help connect members of our community with additional educational information about photobiomodulation technologies, including devices developed by Vielight. 

 

For those independently exploring this area, we are fortunate to be able to provide a community discount through our network connections.

 

This is shared in a support-led and educational context, with the aim of helping reduce barriers for individuals who are already considering this type of therapy.

 

If you are interested in purchasing a Vielight please contact us to obtain the community discount.

 

If you would like to learn more about the science behind photobiomodulation, you can visit Vielight’s website here:

https://www.vielight.com/

You can also explore their published articles and research discussions here:

https://www.vielight.com/blog/

 

Together, we’re stronger — and better informed.

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