When Dizziness and Brain Fog May Be an Energy Problem in the Brain
Recurrent dizziness can be frustrating and confusing. Some people experience repeated episodes of BPPV. Others wake up feeling constantly unsteady, mentally clouded, or aware that their short-term memory is not as sharp as it once was.
While these symptoms are often treated as purely inner ear or structural problems, there is another important factor that is frequently overlooked: energy production within the brain.
Certain areas of the brain, particularly the cerebellum and vestibular brainstem, are extremely energy dependent. These regions control balance, eye coordination, posture, and aspects of short-term memory. When energy supply to these structures drops, symptoms such as dizziness, instability, fatigue, and brain fog can appear.
A key metabolic pathway involved is the Pyruvate Dehydrogenase (PDH) pathway. This system converts glucose into usable cellular energy through the process of forming acetyl-CoA and ultimately ATP, the energy currency of the cell. If the PDH pathway slows down, brain cells cannot generate energy efficiently.
One major reason this pathway becomes impaired is oxidative stress. As mitochondria produce energy, they also create reactive oxygen species, particularly superoxide free radicals. In small amounts these are normal, but when they accumulate, they can damage mitochondrial structures and interfere with PDH function.
This creates a cycle. Reduced energy production leads to poorer cellular function, and increased oxidative stress further reduces energy output.
The body relies on antioxidant systems to control this process. An enzyme called SOD2 converts superoxide into hydrogen peroxide, which is then neutralised by glutathione into harmless water. If either of these systems is compromised, oxidative stress rises and mitochondrial efficiency declines.
The PDH pathway and mitochondrial function are also highly nutrient dependent. Vitamins B1, B2, B3, B5, alpha-lipoic acid, magnesium, and acetyl-L-carnitine all play essential roles in energy metabolism. When these cofactors are insufficient, energy conversion becomes inefficient, particularly in high-demand brain regions.
When patients present with recurrent BPPV, chronic dizziness, brain fog, short-term memory decline, fatigue, or sleep disruption, it may be worth asking whether energy metabolism is contributing to the picture.
Vestibular dysfunction is not always purely mechanical. In some cases, it is metabolic.
If you would like to understand this mechanism in more detail check out my video here where I explore the role energy has in balance:
https://www.youtube.com/watch?v=nlipW09h5Gs
But If you’re experiencing persistent dizziness, balance issues, or cognitive symptoms and are ready to take control. Book an appointment with my team at Spinewise and let’s explore whether energy dysfunction may be playing a role in your symptoms.
Dr. Trevor Chetcuti
BCSc, BAppSc(Clinical), DIBAK, CNET
Director, Spinewise
