The Ultimate Guide to the Causes of Brain Fog

  • Conceptual medical illustration of heavy metal toxicity, showing liquid mercury accumulating in a human silhouette causing cognitive decline and brain fog.

    Heavy Metal Toxicity and Brain Fog

    ✅ Medically Reviewed by: Dr. Alexandru-Theodor Amarfei, M.D. | Coordinator, Geriatric Medicine – CHIC Unisanté, France You eat clean, you exercise, and you sleep well. Yet, you feel a persistent, heavy "blanket" over your mind. You might have a metallic taste in...

  • Minimalist medical illustration showing a single mold spore blocking a neon neural signal, representing the cognitive disruption of mold exposure.

    Can Mold Exposure Cause Brain Fog? The Link to CIRS

    ✅ Medically Reviewed by: Dr. Alexandru-Theodor Amarfei, M.D. | Coordinator, Geriatric Medicine – CHIC Unisanté, France You have headaches that come and go. You feel dizzy. Your memory is failing. You’ve been to three doctors, and your bloodwork is "normal." But you...

  • Minimalist medical illustration of a human silhouette experiencing sensory overload and blinding brain fog, representing fibromyalgia symptoms.

    Fibromyalgia and Brain Fog: Managing the "Fibro Fog"

    ✅ Medically Reviewed by: Dr. Alexandru-Theodor Amarfei, M.D. | Coordinator, Geriatric Medicine – CHIC Unisanté, France For patients with Fibromyalgia, the pain is debilitating. But often, the cognitive dysfunction—known as "Fibro Fog"—is even worse. It’s the feeling of losing your keys while...

  • Conceptual medical art showing a chaotic wire tangle trapped in heavy concrete, representing the conflict between anxiety and depression causing brain fog.

    Navigating Brain Fog with Anxiety and Depression

    ✅ Medically Reviewed by: Dr. Alexandru-Theodor Amarfei, M.D. | Coordinator, Geriatric Medicine – CHIC Unisanté, France You feel exhausted, yet your mind won't shut off. Or perhaps you feel "blank," like the emotional and cognitive volume has been turned down to zero....

  • Can a Concussion Cause Lasting Brain Fog?

        Dr. Alexandru-Theodor Amarfei, M.D. Medically Reviewed Board-certified physician specializing in neurometabolic health and cognitive function Updated Feb 2, 2025 · 15 min read Concussion brain fog happens because your injured brain is literally running out of fuel. The...