Harnessing the Power of Light: Low-Level Laser Therapy for Traumatic Brain Injury and Stroke Rehabilitation

Written By Brady Wirick

Carolyn has an amazing story that is hard to put into words. She had a brain infection 2 years ago that resulted in a surgery that left her with stroke like symptoms. Rather than me talking about the recovery, watch the above video and then read below. 


Traumatic brain injury (TBI) and stroke are two of the most devastating conditions affecting millions of people worldwide. Traditional rehabilitation methods have made significant strides, but emerging technologies are paving the way for innovative approaches. One such promising therapy is Low-Level Laser Therapy (LLLT), also known as photobiomodulation. In this blog post, we’ll explore the potential of LLLT in the rehabilitation of traumatic brain injuries and stroke, shedding light on its mechanisms, benefits, and the current state of research.

Understanding Low-Level Laser Therapy:

Low-Level Laser Therapy involves the application of low-power lasers (in our case the Erchonia laser) to stimulate cellular function. Unlike high-power lasers used for cutting or ablating tissue, LLLT uses wavelengths that do not generate heat, making it a non-invasive and safe therapeutic option. The primary aim is to enhance cellular processes and promote healing.

Mechanisms of Action:

1. Cellular Energy Production:
– LLLT activates the mitochondria within cells, boosting the production of adenosine triphosphate (ATP), the energy currency of cells.
– Improved cellular energy facilitates various cellular functions, including repair and regeneration.

2. Anti-Inflammatory Effects:
– LLLT has been shown to reduce inflammation by modulating immune responses and inhibiting pro-inflammatory molecules.
– In neurorehabilitation, controlling inflammation is crucial for minimizing secondary damage and promoting recovery.

3. Neuroprotection:
– LLLT has demonstrated neuroprotective effects by enhancing antioxidant defenses and reducing oxidative stress.
– This is particularly relevant in TBI and stroke, where oxidative damage plays a significant role in the progression of injury.

Applications in Traumatic Brain Injury Rehabilitation:

1. Cognitive Function Improvement:
– Studies suggest that LLLT may enhance cognitive function by promoting neuronal survival and synaptic plasticity.
– Improved cognitive outcomes are vital for TBI patients dealing with memory deficits and cognitive impairments.

2. Neuroregeneration:
– LLLT has been found to stimulate neurogenesis, encouraging the growth and development of new neurons.
– This regenerative aspect holds promise for repairing damaged neural networks in the aftermath of traumatic brain injuries.

Applications in Stroke Rehabilitation:

1. Motor Function Recovery:
– LLLT has shown potential in enhancing motor function recovery post-stroke by promoting neuroplasticity.
– This can be a game-changer for stroke survivors working towards regaining mobility and independence.

2. Reduced Spasticity:
– Spasticity is a common complication after stroke. LLLT may help alleviate spasticity by modulating neural excitability and reducing muscle stiffness.

Current Research and Clinical Trials:

1. Positive Findings:
– Preliminary studies and clinical trials have reported positive outcomes, showcasing the effectiveness of LLLT in improving functional outcomes in both TBI and stroke patients.

2. Challenges and Questions:
– While the results are promising, more research is needed to determine optimal treatment parameters, such as the ideal wavelength, intensity, and duration of LLLT sessions.
– Standardized protocols will contribute to a better understanding of LLLT’s efficacy in different stages of rehabilitation.


Low-Level Laser Therapy presents a novel and promising avenue in the rehabilitation of traumatic brain injuries and stroke. Its non-invasive nature, coupled with its ability to enhance cellular function and promote neuroregeneration, makes it a valuable addition to the therapeutic arsenal. As research continues to unfold, LLLT may revolutionize the way we approach neurorehabilitation, offering hope and improved outcomes for those on the path to recovery from these debilitating conditions.

The bottom line: LLLT should be the first line of treatment in TBI and Stroke Recovery


  1. Bryan

    What’s the statute of limitations on these treatments? In other words, can it be used to treat that “old high school football concussion”? Also, if we’re talking mitochondrial stimulation, can it be used as a general regenerative treatment to combat normal cognitive decline as a result of aging?

    • Brady Wirick

      Loaded question Bryan. The short answer is yes and yes. The long answer is it depends. Everyone responds a little differently. I am working with someone right now who’s injury is 40 years old and she is seeing results. As far as cognitive decline, the answer it depends. I personally use it as a frequent tool to prevent decline based on articles I have seen. In both cases, call the office and let’s talk a little more specifically.


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