Red light therapy (RLT), also known as photobiomodulation (PBM), has gained significant attention in recent years as a potential therapeutic tool for various health conditions, including concussion recovery. As someone who works with concussion patients and has researched this topic extensively, I want to provide a comprehensive overview of what the science says, and what you need to know before investing in a device.
What Is Red Light Therapy?
Red light therapy involves exposing the body to low levels of red or near-infrared (NIR) light. Unlike ultraviolet (UV) light, which can damage the skin, red and NIR light are considered safe and have been shown to penetrate the skin and underlying tissues, reaching muscles, nerves, and even bones.
The primary mechanism of action involves the mitochondria — the energy-producing organelles in our cells. Red and NIR light stimulates cytochrome c oxidase, a key enzyme in the mitochondrial respiratory chain, leading to increased production of adenosine triphosphate (ATP), the cell's primary energy currency. This boost in cellular energy can have wide-ranging effects, including reduced inflammation, enhanced tissue repair, and improved neurological function.
The Science Behind Red Light Therapy for Concussion
Several studies have investigated the use of RLT in traumatic brain injury (TBI) and concussion recovery:
- A 2011 study published in the Journal of Neurotrauma found that transcranial laser therapy (a form of RLT) improved neurological performance in mice with TBI.
- A 2016 study in Photomedicine and Laser Surgery showed that transcranial photobiomodulation improved cognitive function in patients with chronic TBI.
- Research published in the Journal of Biophotonics in 2017 demonstrated that NIR light could reduce neuroinflammation and improve cognitive function in animal models of TBI.
- A 2020 review in the Journal of Neuroengineering and Rehabilitation concluded that photobiomodulation has potential as a non-invasive treatment for TBI, with benefits including reduced inflammation, improved mitochondrial function, and enhanced neuroplasticity.
While these studies are promising, it's important to note that much of the research has been conducted on animals or small human samples. More large-scale, randomized controlled trials are needed to establish definitive guidelines for RLT in concussion recovery.
What to Look for in a Red Light Therapy Device
If you're considering purchasing a red light therapy device for concussion recovery, here are the key factors to consider:
Wavelengths
Look for devices that emit light in the red (630-700nm) and near-infrared (800-1100nm) ranges. These wavelengths have the most scientific support for therapeutic effects. Devices that emit only visible red light (without NIR) may have limited penetration into deeper tissues.
Power Density (Irradiance)
Measured in milliwatts per square centimeter (mW/cm²), power density affects how quickly therapeutic doses are delivered. For brain-related applications, you want a device with sufficient power to penetrate the skull. Look for devices with at least 50-100 mW/cm² at the treatment distance.
Treatment Area
For concussion recovery, you'll want a device that can cover the entire head or specific areas of concern. Some devices are designed specifically for transcranial use, while others are more general-purpose panels.
Safety Features
Ensure the device has been tested for safety and doesn't emit harmful UV radiation. Look for devices with built-in timers and automatic shut-off features.
Clinical Evidence
Look for devices that have been used in clinical studies or are backed by peer-reviewed research. Be wary of devices that make extravagant claims without scientific support.
Recommended Devices
Based on my research and clinical experience, here are some devices worth considering:
- Vielight NeuroDuo: Specifically designed for transcranial and intranasal photobiomodulation, with wavelengths targeting brain tissue. Clinical trials using VieLight can be found on their website. You can receive 10% off your purchase of a VieLight using discount code HEALINGRESPONSE.
- Neuromatrix Headset: The Neuromatrix Headset aids in cognitive function, energy, mood, and achieving deeper states of meditation. Save $350 with code LIFEAFTERIMPACT.
Precautions and Contraindications
While RLT is generally considered safe, there are some precautions to keep in mind:
- Eye protection: Always wear appropriate eye protection when using RLT devices, especially near the face.
- Photosensitivity: Some medications can increase sensitivity to light. Consult with your healthcare provider if you're taking any photosensitizing drugs.
- Active cancer: RLT may stimulate cell growth, so it's generally contraindicated in areas of active cancer.
- Pregnancy: Limited research exists on the safety of RLT during pregnancy, so it's best to avoid it.
Conclusion
Red light therapy shows promise as a complementary treatment for concussion recovery, with potential benefits including reduced neuroinflammation, improved mitochondrial function, and enhanced neuroplasticity. However, it's important to approach RLT as part of a comprehensive recovery plan, not a standalone treatment.
Before investing in a device, consult with a healthcare provider familiar with both concussion recovery and photobiomodulation. They can help you determine if RLT is appropriate for your specific situation and guide you in selecting the most suitable device and treatment protocol.
Remember, recovery from concussion is a journey that often requires a multifaceted approach. Red light therapy may be one valuable tool in your recovery toolkit, but it works best when combined with other evidence-based treatments and lifestyle modifications.
Related Podcast Episodes
Red light therapy comes up across multiple episodes of Life After Impact. Here are all the episodes where we explore photobiomodulation, neuroplasticity, and recovery tools in depth:
Episode 62 — Part 1
Fighters Are Still Falling Through the Cracks After Concussion with Jordan Jay Adams (Part 1)
Listen to Episode 62Episode 63 — Part 2
Clear Mind After Concussion: Neuroplasticity and the Search for What Works (Part 2)
Listen to Episode 63Episode 67
Brain Fog, Poor Sleep & Fight-or-Flight After Concussion: Can BrainTap Help?
Listen to Episode 67