Photobiomodulation and Concussions

Concussions are more than just a knock on the head—they are a form of traumatic brain injury (TBI) that can have lasting effects if not properly managed. Brain injuries can trigger inflammation, disrupt neural connections, and impair overall brain function, leading to symptoms such as headaches, dizziness, memory difficulties, mood changes, and, in some cases, long-term cognitive challenges.

Photobiomodulation (PBM), also known as red light therapy, is showing promise as a supportive treatment for concussions. Specific wavelengths of red and near-infrared light, typically between 660 nm and 850 nm, can help reduce brain inflammation, stimulate cellular repair, and promote faster recovery of neural tissue.

Why Concussions Are Harmful

A concussion occurs when the brain moves abruptly within the skull due to a blow or impact, temporarily disrupting normal brain function. This can lead to symptoms like confusion, memory lapses, dizziness, headaches, and in some cases, brief loss of consciousness. Repeated concussions or severe injuries can result in long-term brain damage, affecting cognitive abilities, emotional regulation, and overall quality of life.

One major factor in lingering symptoms is the brain’s inflammatory response to injury. This is where photobiomodulation (PBM), or red light therapy, can play a crucial role in supporting recovery.

How Photobiomodulation Supports Concussion Recovery

Red and near-infrared light therapy panels are designed to deliver specific wavelengths—660 nm (red light) and 850 nm (near-infrared)—that penetrate scalp and skull tissue to reach the brain. These wavelengths stimulate biological processes that support brain healing and function.

Key Benefits of PBM for Concussions:

• Reduction of Inflammation: Near-infrared light penetrates deep into brain tissue to reduce neuroinflammation, which is a primary contributor to post-concussion symptoms like headaches and brain fog.

• Cellular Repair: Red and NIR light energizes mitochondria in brain cells, increasing ATP production (cellular energy) and facilitating repair of damaged neural tissue.

• Neurogenesis and Neuroplasticity: PBM promotes the growth of new neurons and enhances brain plasticity, helping the brain adapt and recover after injury.

Research Supporting PBM for Concussions

Multiple studies and clinical observations demonstrate PBM’s potential in supporting brain injury recovery:

• Naeser et al. (2014): Patients with traumatic brain injuries showed improved cognitive function and emotional stability after regular near-infrared light therapy, reporting reduced depression, anxiety, and irritability.

• Hamblin (2016): Research by Michael Hamblin highlights that red and NIR light reduce brain inflammation, enhance neuroplasticity, and accelerate post-concussion recovery.

• Real-World Cases: High-profile athletes, including NHL player Sidney Crosby, have reportedly used PBM to aid recovery from multiple concussions.

How to Use Red Light Therapy for Concussion Recovery

For effective results, follow these guidelines:

• Wavelengths: Use 660 nm (red) and 850 nm (near-infrared) light to ensure deep penetration and target inflamed brain tissue.

• Session Duration & Frequency: Apply PBM for 10–20 minutes per session, 3–5 times per week. Consistent use over several weeks is essential for meaningful recovery.

• Target Area: Focus light on the scalp and forehead, ensuring it reaches the affected regions of the brain. Modern RLT devices provide sufficient intensity to penetrate hair and skull tissue.

Conclusion

Photobiomodulation is a safe, non-invasive, and drug-free approach to support concussion recovery. By using the right wavelengths, red light therapy can reduce brain inflammation, stimulate cellular repair, and promote neuroplasticity, helping the brain recover more effectively from injury.

For anyone experiencing concussion symptoms or looking to enhance brain recovery, PBM devices offer a scientifically supported method to restore cognitive function, reduce lingering symptoms, and support overall brain health.

Sources:

• Naeser, M. A., et al. (2014). "Improved Cognitive Function after Transcranial, Light-Emitting Diode Treatments in Chronic, Traumatic Brain Injury: Two Case Reports."

• Hamblin, M. R. (2016). "Photobiomodulation for Traumatic Brain Injury and Stroke."

• Case studies and testimonials from athletes and healthcare providers using PBM for brain injuries.

• Concussion Alliance.org : https://www.concussionalliance.org/search?q=photobiomodulation