Feeling mentally foggy, emotionally drained, or unlike yourself after an illness or prolonged period of stress can be frustrating, especially when you can’t pinpoint why.
Researchers increasingly recognize that neuroinflammation, or inflammation affecting the brain and central nervous system, may play a role in symptoms such as brain fog, depression, anxiety, fatigue, and changes in memory or concentration.
While scientists continue studying this complex relationship, growing evidence suggests that inflammation can influence how different brain networks communicate, affecting both cognitive function and emotional well-being.
At Neurotherapeutix, we take a personalized approach to understanding brain function through advanced computational brain mapping and fMRI-guided TMS therapy. Rather than focusing solely on symptoms, our multidisciplinary team evaluates each patient’s unique brain connectivity to develop individualized treatment recommendations.
Here’s what you should know about neuroinflammation, how it may affect your mental health, and how advances in neuroscience are helping clinicians better understand the brain.
What is neuroinflammation?
Neuroinflammation refers to inflammation within the brain and central nervous system.
Unlike inflammation that occurs after a cut or sprained ankle, neuroinflammation involves the brain’s immune response. While inflammation is an important part of healing, prolonged or excessive activation of the brain’s immune system may interfere with normal communication between brain cells.
Researchers have linked neuroinflammation to a growing number of neurological and psychiatric conditions. Potential triggers may include:
- Viral infections
- Autoimmune disorders
- Traumatic brain injury
- Chronic psychological stress
- Certain neurological diseases
In recent years, persistent neurological symptoms following COVID-19 have also increased interest in understanding how neuroinflammation may contribute to long-term cognitive and emotional changes.
Although scientists continue to investigate these mechanisms, evidence suggests that changes in brain network function may help explain why some people experience lingering symptoms long after the initial illness has resolved.
Does inflammation cause brain fog?
Brain fog is one of the most commonly associated symptoms of neuroinflammation.
While “brain fog” is not a formal medical diagnosis, it describes a collection of cognitive symptoms that can make everyday thinking feel slower or more difficult. Many people report problems with concentration, memory, mental clarity, word finding, or processing information.
Inflammation may contribute to these symptoms by disrupting communication between important brain networks responsible for attention, memory, and executive function.
Inflammation in the brain and its impact on function
The brain depends on billions of neurons communicating efficiently with one another.
When inflammation disrupts these communication pathways, it may affect how different brain regions coordinate information. As a result, individuals may experience:
- Slower processing speed
- Difficulty concentrating
- Short-term memory problems
- Reduced mental clarity
- Trouble making decisions
- Mental fatigue
Because these symptoms can overlap with depression, anxiety, post-viral syndromes, and other neurological conditions, identifying the underlying contributors is an important part of developing an individualized treatment plan.
The role of the immune system in neuroinflammation
The immune system plays a critical role in protecting the brain from injury and infection.
Normally, specialized immune cells within the brain help remove damaged cells and support healing. However, when immune activity remains elevated for an extended period—as may occur after viral illnesses, chronic stress, or certain medical conditions—it may contribute to ongoing inflammation and changes in brain function.
How neuroinflammation affects brain chemistry
Healthy brain function depends on carefully balanced communication between neurons and the neurotransmitters that regulate mood, motivation, attention, and emotional processing.
Research suggests that neuroinflammation may affect several chemical signaling systems, including serotonin, dopamine, and glutamate pathways. When these systems are disrupted, individuals may experience symptoms that affect both mood and cognition.
Rather than causing a single condition, neuroinflammation appears to interact with multiple biological processes that influence emotional well-being and brain function.
Symptoms of brain inflammation
Symptoms associated with neuroinflammation may vary from person to person but commonly include:
- Persistent brain fog
- Memory problems
- Difficulty concentrating
- Mental fatigue
- Low mood or depression
- Anxiety
- Reduced motivation
- Slower thinking
- Difficulty making decisions
These symptoms do not necessarily indicate neuroinflammation, but they may warrant evaluation if they persist or interfere with daily life.
The link between neuroinflammation and depression
Researchers increasingly recognize that depression involves far more than changes in mood alone.
Growing evidence suggests that inflammation may influence the brain networks involved in emotional regulation, motivation, and cognitive function.
While depression has many contributing factors, neuroinflammation is now considered an important area of ongoing research, particularly for individuals whose symptoms have not responded to traditional treatment approaches.
Studies have found elevated inflammatory markers in some individuals with depression, leading researchers to explore how immune activity and brain network function may contribute to depressive symptoms.
Because depression develops differently in every individual, understanding each person’s brain function may provide additional insight into creating a more personalized treatment plan.
What causes long COVID brain fog?
For many people, recovery from COVID-19 ends within a few weeks. Others continue experiencing neurological symptoms for months after the initial infection.
Long COVID brain fog may result from several interacting factors, including persistent immune activation, changes in blood flow, inflammation, and alterations in brain network function.
Common symptoms may include:
- Difficulty concentrating
- Forgetfulness
- Slower thinking
- Mental fatigue
- Reduced attention span
- Problems multitasking
Depression and anxiety after COVID-19
Long COVID affects more than physical health.
Many individuals also report increased anxiety, depression, sleep disturbances, and emotional changes during recovery.
Researchers continue studying whether persistent neuroinflammation, changes in brain connectivity, prolonged stress, or a combination of these factors contribute to these symptoms.
Although the exact mechanisms remain under investigation, understanding brain function has become an important area of research in post-COVID neurological recovery.
How Neurotherapeutix in NYC can help with personalized inflammation support
Neuroinflammation is an active area of scientific research, and while no single treatment is appropriate for every patient, advances in neuroscience are helping clinicians better understand how changes in brain function may contribute to persistent cognitive and emotional symptoms.
At Neurotherapeutix, our approach begins with understanding how your brain functions, not simply identifying a diagnosis.
Using advanced fMRI-guided TMS therapy and personalized computational brain mapping, our multidisciplinary team evaluates functional brain connectivity to develop an individualized treatment plan based on your unique brain activity.
Rather than relying on standardized treatment protocols, this personalized approach helps clinicians identify the neural circuits associated with your symptoms and determine whether targeted brain stimulation is appropriate.
Transcranial magnetic stimulation (TMS) is a non-invasive treatment that uses magnetic pulses to stimulate specific brain regions involved in mood, cognition, and emotional regulation.
Researchers continue to investigate how TMS influences functional brain networks, neuroplasticity, and neuroimmune pathways, including inflammatory signaling. Early studies suggest TMS may affect certain inflammatory markers while promoting healthier communication between brain networks, although this remains an evolving area of research.
Beyond brain stimulation itself, Neurotherapeutix’s patented computational brain mapping helps personalize where stimulation is delivered. By analyzing each patient’s functional connectivity rather than relying solely on standardized anatomical landmarks, clinicians can develop treatment plans tailored to the individual’s unique brain organization.
This personalized model may benefit individuals experiencing persistent symptoms such as:
- Brain fog
- Difficulty concentrating
- Memory problems
- Depression
- Anxiety
- Cognitive changes following illness or neurological injury
- Other neurological or psychiatric conditions
Because every patient is different, treatment recommendations are based on a comprehensive clinical evaluation, medical history, functional imaging findings, and individual treatment goals.
As the only clinical practice in the United States offering patented computational brain mapping to personalize fMRI-guided TMS therapy, Neurotherapeutix combines neuroscience, advanced imaging, psychiatry, and individualized treatment planning into one coordinated model of care.
Frequently asked questions
Can neuroinflammation be reversed?
Neuroinflammation is a complex biological process, and the answer depends on its underlying cause.
In many cases, reducing or resolving the underlying condition that contributes to inflammation may improve symptoms over time.
Researchers continue to study how targeted therapies, lifestyle changes, and advances in neuroscience may support brain recovery and improve neurological function.
fMRI-guided TMS uses functional brain imaging to identify and target networks that may be dysregulated in an individual patient. Repeated, targeted stimulation can influence activity and connectivity within these networks, including pathways involved in mood, stress regulation, cognition, and pain.
Research suggests that rTMS may also affect neuroimmune processes, including glial activity and inflammatory signaling; however, these findings are still evolving and do not establish fMRI-guided TMS as a direct treatment for neuroinflammation.
By personalizing stimulation targets with fMRI, clinicians aim to deliver TMS to the brain circuits most relevant to a patient’s symptoms. This approach may support neuroplasticity and healthier network regulation, which could indirectly influence processes associated with inflammation and recovery.
Further clinical research is needed to determine when and for whom fMRI-guided TMS can meaningfully affect neuroinflammatory markers or inflammation-related conditions.
How do I know if I have neuroinflammation?
There is no single test that definitively diagnoses neuroinflammation in every patient. Symptoms such as persistent brain fog, difficulty concentrating, memory problems, depression, anxiety, or cognitive changes may have many possible causes.
A comprehensive clinical evaluation helps determine whether additional neurological or psychiatric assessment is appropriate and what treatment options may best address your symptoms.
Advanced resting-state fMRI measures how brain regions communicate while a person is at rest, creating a map of functional connectivity across networks involved in mood, cognition, pain, and stress regulation. Research has found that altered connectivity patterns in some of these networks can be associated with inflammatory signaling. These findings may provide clinicians with additional context about brain-network dysfunction that can occur alongside inflammation-related conditions.
Is TMS therapy safe for addressing neuroinflammation?
TMS therapy has an established safety profile when used for FDA-cleared indications and other clinically appropriate applications under physician supervision.
Researchers are actively investigating how TMS influences brain networks and inflammatory pathways, but its role in neuroinflammation continues to evolve as additional evidence becomes available.
TMS may influence neuroinflammation by modulating the activity of targeted brain networks and the cellular signaling that supports them. Early laboratory and clinical research suggests that repetitive TMS can affect microglia and astrocytes—cells involved in the brain’s immune response—and may help shift inflammatory signaling away from pro-inflammatory cytokines, such as TNF-α, IL-1β, and IL-6, toward more protective pathways, including IL-10 and brain-derived neurotrophic factor (BDNF).
TMS may also support synaptic plasticity, neurotransmitter regulation, and network recovery, which could indirectly contribute to a healthier inflammatory environment in the brain.
Your Neurotherapeutix clinician will determine whether treatment is appropriate based on your individual medical history and clinical evaluation.
For a more detailed overview, learn how TMS therapy works and how Neurotherapeutix personalizes treatment.
How long does it take to see improvement?
Every patient’s experience is different.
Some individuals notice gradual improvements during treatment, while others experience more subtle changes that become apparent over time.
Factors such as your diagnosis, overall health, treatment history, and individualized treatment plan all influence the timeline for improvement.
Throughout treatment, the Neurotherapeutix team monitors clinical progress and adjusts recommendations as appropriate to help ensure care remains aligned with your needs.
Take the next step toward understanding your brain health
Persistent brain fog, changes in memory, depression, anxiety, and cognitive symptoms can be frustrating, especially when they continue long after an illness or don’t improve with traditional treatment alone.
At Neurotherapeutix, we believe understanding how your brain functions is an important step toward developing a more personalized treatment plan.
Through advanced functional imaging, patented computational brain mapping, and individualized fMRI-guided TMS therapy, our team works to better understand the neural networks contributing to each patient’s symptoms.
If you’d like to learn more about our personalized approach to brain-based care, request an appointment to schedule a comprehensive evaluation with our multidisciplinary team.
