What is Brain Fog? The Complete Scientific Guide

  • Medical illustration of the glymphatic system washing away toxins and brain fog during deep sleep, emphasizing the importance of a daily sleep hygiene checklist.

    Neurological Sleep Protocol for Brain Fog and Peak Cognitive Performance

    A brain‑first sleep protocol for people who wake up foggy even after 8 hours in bed. 📅 Updated: January 2026 ⏱️ 9 min read ✅ Medically Reviewed by Dr. Alexandru Amarfei, M.D. Fixing your sleep architecture—side‑sleeping, a 10‑hour caffeine cutoff,...

  • Minimalist illustration of brain fog clearing, showing a mind transitioning from cloudy to clear.

    54 ways to get rid of brain fog

    Evidence-tiered strategies from clinical research AND patient communities. No wellness woo. Just biology and honest answers. Medically Reviewed By Dr. Alexandru-Theodor Amarfei, M.D. Last Updated February 2, 2026 Reading Time 24 minutes Medical Disclaimer: This content is for informational purposes...

  • Brain Cloudiness vs. Fog: Is There a Difference?

    Brain Cloudiness vs. Brain Fog: Is There a Difference?

    Written by Dr. Alexandru-Theodor Amarfei, M.D. Published June 15, 2024 Updated January 14, 2026 Reading Time 8 min read Medically Reviewed by Dr. Alexandru-Theodor Amarfei, M.D. Visual comparison of brain cloudiness (transient, metabolic) vs. brain fog (chronic, inflammatory) Table of...

  • Twisted bed sheets in moonlight representing a restless night and sleep-deprived brain fog.

    Constant Mental Fatigue: Why You're Tired But Not Sleepy

    Constant mental fatigue without sleepiness recovers through cognitive rest, not more sleep. Switch tasks to engage different brain regions, reduce your daily decision load, address underlying inflammation through anti-inflammatory nutrition, and restore depleted neurotransmitters with targeted amino acids and B-vitamins....

  • Conceptual medical art showing memory loss and synaptic fading in the human brain.

    Understanding Brain Fog-Related Memory Loss

    Is brain fog memory loss permanent? In most cases, no. Brain fog memory loss is typically reversible because it stems from neuroinflammation disrupting memory encoding—not structural brain damage. Research published in Neurological Sciences (2024) confirms that once the underlying cause...