Five Ways Acupuncture Can Support Concussion Recovery: A Neuroscience Perspective

1. Improving Cerebral Blood Flow and Oxygen Delivery

One of the important physiological consequences of concussion is the potential disruption of cerebral blood flow and its regulation.

The brain requires a continuous supply of oxygen and glucose to maintain normal neuronal function. Following a concussion, changes in cerebral perfusion and neurovascular regulation may contribute to cognitive fatigue, headaches, exercise intolerance, and other neurological symptoms.

Research discussed in The Concussion Breakthrough suggests that acupuncture may influence cerebral circulation through several mechanisms.

Acupuncture can stimulate the release of nitric oxide, a signaling molecule involved in vasodilation and vascular regulation. Research has also investigated how acupuncture of the scalp and face can influence cerebral blood flow through activation of the trigeminal system.

The trigeminal nerve has important connections with brainstem circuits involved in vascular regulation, providing a possible neurological explanation for changes in cerebral perfusion observed in some acupuncture studies.

For acupuncturists, this represents an interesting shift in perspective. Scalp and facial acupuncture may do more than provide local pain relief. They may also influence neurovascular function.

2. Reducing Post-Traumatic Headaches Through Pain Neuromodulation

Post-traumatic headaches are among the most common and disabling symptoms following a concussion. They can resemble migraines, tension-type headaches, or cervicogenic headaches, but often involve overlapping mechanisms.

Acupuncture has an established history of use in headache management, and modern neuroscience has helped clarify how it influences pain-processing networks.

Needle stimulation activates peripheral sensory pathways that communicate with the central nervous system. This can influence the release of endogenous opioids and neurotransmitters involved in pain modulation, including serotonin, norepinephrine, and GABA.

Acupuncture can also engage descending pain-modulating networks involving the periaqueductal gray, rostral ventromedial medulla, and other structures involved in regulating nociceptive transmission.

These mechanisms are particularly relevant when persistent post-traumatic headaches involve altered central pain processing or sensitization.

I was involved in designing the acupuncture treatment protocol for a clinical study investigating chronic post-traumatic headaches following mild traumatic brain injury.

Participants initially averaged approximately 23 headache days per month. Following five weeks of acupuncture, those receiving treatment once or twice weekly reported an average reduction of approximately eight headache days per month.

Although this was a small study, the findings provide encouraging preliminary evidence for acupuncture as part of a comprehensive headache management strategy.

3. Modulating the Autonomic Nervous System and Parasympathetic Function

Autonomic dysregulation, often referred to as dysautonomia, is an increasingly recognized consequence of concussion.

The autonomic nervous system regulates heart rate, blood pressure, digestion, thermoregulation, and numerous other physiological functions. Following a concussion, patients may experience altered sympathetic and parasympathetic regulation.

Symptoms can include exercise intolerance, orthostatic intolerance, palpitations, lightheadedness, gastrointestinal disturbances, and a persistent sense of physiological hyperarousal.

Acupuncture is particularly interesting in this context because somatosensory stimulation can influence autonomic circuits within the brainstem and hypothalamus.

Experimental research has demonstrated that stimulation of specific peripheral nerve pathways can influence vagal and sympathetic output. Some studies have also reported changes in heart rate variability following acupuncture, suggesting potential effects on cardiac autonomic regulation.

For patients with post-concussion dysautonomia, acupuncture may serve as an adjunct to targeted autonomic rehabilitation. Assessments such as orthostatic vital signs, heart rate variability, and exercise tolerance can help practitioners better understand the patient's presentation and monitor progress.

4. Improving Cervical Proprioception and Sensory Integration

The forces involved in a concussion frequently affect the cervical spine as well as the brain.

Neck injuries can disrupt proprioceptive signaling from cervical muscles and joints, particularly the upper cervical region, where dense populations of mechanoreceptors provide important information about head position and movement.

These signals must be integrated with visual and vestibular information to maintain balance, coordinate eye movements, and accurately perceive the position of the head in space.

When cervical proprioceptive input becomes unreliable, patients may experience dizziness, disequilibrium, headaches, and difficulty coordinating head and eye movements.

Acupuncture may help by reducing cervical pain and muscle hypertonicity while influencing sensory signaling from the injured region.

Research discussed in The Concussion Breakthrough also explores improvements in cervical joint position sense following acupuncture.

This is particularly relevant for acupuncturists because treatment of the cervical spine may influence more than musculoskeletal discomfort. Improving the quality of cervical sensory input may help support the broader process of sensory integration. Acupuncture can be integrated with appropriate cervical rehabilitation, vestibular therapy, and sensorimotor retraining rather than used as a stand-alone intervention.

5. Modulating Neuroinflammation and Neuroimmune Signaling

Neuroinflammation has become an important area of investigation in traumatic brain injury research.

Following concussion, microglia and astrocytes participate in the brain's response to injury. While these inflammatory and repair processes are initially protective, persistent or dysregulated neuroimmune signaling may contribute to ongoing neurological dysfunction in some patients.

Acupuncture has demonstrated immunomodulatory effects in experimental research, including effects on inflammatory cytokines and signaling pathways associated with immune activation.

One particularly interesting pathway is the NLRP3 inflammasome, a molecular complex involved in activating inflammatory responses.

Studies discussed in The Concussion Breakthrough describe acupuncture's potential influence on NLRP3-related signaling and other mechanisms involved in neuroinflammation.

Another important area of research involves neuroimmune communication through autonomic pathways, including vagally mediated inflammatory regulation.These findings suggest that acupuncture may influence communication between the nervous and immune systems, although much of the mechanistic evidence comes from preclinical research.

Bringing It All Together: Treating the Patient, Not Just the Concussion

Perhaps the most important lesson from concussion research is that no two concussions are alike.

One patient may struggle primarily with post-traumatic headaches and cervical pain. Another may experience debilitating autonomic dysfunction, exercise intolerance, and sleep disturbances. A third may have a combination of visual, vestibular, and cognitive symptoms.

This is why The Concussion Breakthrough organizes persistent symptoms into nine meaningful categories, helping patients and practitioners recognize patterns, identify appropriate testing, and explore targeted treatment strategies.

Acupuncture’s ability to modulate pain processing, autonomic signaling, interoception, peripheral sensory input, and potentially neurovascular and neuroimmune function makes it a valuable modality to investigate and incorporate into an individual’s concussion recovery program.

As the neuroscience of acupuncture continues to evolve, so does our opportunity to bring greater precision and clinical reasoning to the treatment of patients recovering from brain injuries.

The Concussion Breakthrough: Discover the Missing Pieces to Recovery, by Dr. Ayla Wolf, explores these mechanisms in greater depth, along with neurological assessments, diagnostic considerations, and emerging non-pharmaceutical treatment approaches for persistent post-concussion symptoms.