Optimising Brain Function: Gut Health, Stress & Spinal Health

Shadow Work - Self Image - Spirituality - Healing - Knowledge

April 01, 2025•6 min read

What is optimising brain function? In this article, we are going to look at the mind-body connection and understanding the brain's role in health.

The brain is the command centre of the body, influencing everything from thoughts and emotions to digestion and movement. Issues like anxiety, depression, ADHD, impulse control, and schizophrenia are often linked to different areas of the brain, particularly the frontal lobe. Interestingly, the frontal lobe is highly programmable, meaning that many of these conditions may not be diseases requiring medication but rather adaptations to stress.

Brain Structure and Energy Needs

Despite weighing only about two pounds, the brain is a high-energy organ. It consists of 50% cholesterol, which is essential for hormone production and cell membrane integrity. The brain also consumes:

90% of the body’s oxygen
30% of the body’s calories

This high demand underscores the importance of proper nutrition and oxygenation for optimal brain function.

"Optimising brain function requires proper nutrition, oxygenation, and stress management, as the brain influences emotions, digestion, and movement while consuming significant energy."

The Gut-Brain Connection: A Two-Way Street

The gut is often called the “second brain”, and its relationship with the brain is profound. A crucial link between them is the vagus nerve, which exits the base of the brain and plays a major role in digestion, acid secretion, and sensory feedback.

90% of vagus nerve function is sensory, meaning the brain constantly receives signals from the gut.
Neurotransmitters like serotonin and dopamine—which influence mood—are largely produced in the gut.
Toxic and nutrient-deficient diets can lead to abnormal brain function.

Studies have shown that modifying gut bacteria (such as through probiotics or even fecal microbiota transplants) can positively influence brain health and cognitive function, particularly in conditions like dementia.

Importance of the vagus nerve and brain health

"The gut-brain connection, linked through the vagus nerve, affects digestion, mood, and cognitive function, with gut health playing a crucial role in brain performance."

Spinal Health and Brain Function

The spinal column plays a crucial role in brain function. Proper movement and alignment of the spine are essential for nerve stimulation and communication with the brain.

The cerebellum (at the back of the brain) processes sensory input from the joints, muscles, and ligaments.
Spinal misalignments can affect the brain, leading to dizziness, poor balance, and cognitive issues.
Restricted movement in the spine can reduce oxygen supply to the brain, further impacting mental function.

Correcting spinal issues through adjustments, posture correction, and movement exercises can help restore proper brain stimulation.

Importance of spinal health for a healthy brain

"Spinal health is vital for brain function, as proper alignment and movement ensure effective nerve communication, preventing issues like dizziness, poor balance, and cognitive decline."

How Stress Affects the Brain and Body

The autonomic nervous system has two primary states:

Fight-or-flight (sympathetic nervous system) – activated by stress, whether physical, chemical, or emotional.
Rest and regeneration (parasympathetic nervous system) – responsible for healing, digestion, and recovery.

Chronic Stress and Its Impact

Long-term stress keeps the body stuck in protection mode, which can lead to:

Increased LDL cholesterol (which is actually used for tissue repair, not just a "bad" cholesterol)
High blood pressure (a response to stress, not necessarily a disease)
Insulin resistance and Type 2 diabetes (linked to poor diet and stress-related metabolic changes)
Poor digestion and impaired immune function

Many conditions labelled as diseases may actually be adaptive responses to chronic stress, rather than disorders in need of pharmaceutical intervention.

"Chronic stress keeps the body in fight-or-flight mode, leading to issues like high blood pressure, insulin resistance, poor digestion, and impaired immune function, which may be adaptive responses rather than diseases."

How to Optimise Brain Function Naturally

To promote healthy brain function, the key is to address the root causes of stress rather than simply treating symptoms. Here’s how:

1. Correct Spinal Alignment and Movement

Ensure proper posture and spinal motion to allow for adequate nerve stimulation and cerebrospinal fluid flow.
Engage in symmetrical movements like walking with proper arm swings.
Consider chiropractic adjustments or posture exercises to restore spinal integrity.

2. Improve Diet and Sleep

Eliminate processed foods and consume organic, whole, seasonal foods.
Fermented foods can support gut health, improving brain chemistry.
Prioritise deep sleep by avoiding screens before bed and maintaining a consistent sleep schedule.

3. Manage Emotional Stress and Mental Inputs

Address negative mental patterns through mindfulness, meditation, or cognitive restructuring.
Engage in activities that promote emotional balance and relaxation.

4. Increase Oxygen and Blood Flow to the Brain

Regular exercise and deep breathing techniques can improve oxygen supply.
Avoid sedentary habits and practice regular movement.

By implementing these lifestyle adjustments, you can optimise brain function, enhance mental clarity, and support overall well-being.

"To optimise brain function naturally, focus on spinal health, a nutritious diet, emotional stress management, and regular movement to improve oxygen and blood flow to the brain."

Final Thoughts On Brain Function And A Healthy Gut

Brain function is deeply influenced by spinal health, gut health, stress, and lifestyle choices. Many common conditions like depression, anxiety, and high cholesterol are not standalone diseases but adaptive responses to stress. By focusing on spinal alignment, proper nutrition, emotional balance, and movement, we can enhance brain function naturally.

A Broader Approach To Mental And Emotional Wellbeing

Looking after your wellbeing can involve many different elements, including sleep, movement, nutrition, stress awareness and creating opportunities for the mind and body to slow down.

It can also be helpful to become more aware of the emotional and behavioural patterns that influence how you respond to everyday experiences.

The Dream Method provides a five-stage framework for this kind of personal exploration:

DISCOVER → REALISE → EMBRACE → ACTUALISE → MASTER

Rather than focusing on changing everything at once, the pathway encourages greater awareness, reflection and gradual embodied change.

Take The Free Dream Method Pathway

The Dream Method is a personal-development framework and is not a substitute for medical or mental-health assessment, diagnosis or treatment.

Optimising Brain Function Frequently Asked Questions

1. How does diet impact brain function?

Diet plays a crucial role in brain health. Nutrient-rich foods provide essential fats, vitamins, and minerals that support brain function, while processed foods and toxins can impair cognitive performance.

2. Can stress actually change brain function?

Yes. Chronic stress alters brain chemistry, structure, and function, affecting areas like the frontal lobe, hippocampus, and amygdala. This can lead to anxiety, depression, and impaired decision-making.

3. What are signs of poor brain oxygenation?

Symptoms of inadequate oxygen to the brain include brain fog, dizziness, poor memory, low energy, and difficulty concentrating.

4. How does gut health affect the brain?

The gut produces key neurotransmitters that influence mood and cognition. An unhealthy gut can contribute to brain fog, depression, and anxiety.

5. What are simple ways to boost brain function daily?

Stay hydrated and eat a nutrient-dense diet.
Practice deep breathing and physical movement.
Maintain proper spinal alignment.
Prioritise sleep and stress management.