“Brain fog” is not a medical diagnosis but a description: slow thinking, poor focus, trouble finding words, mental fatigue. Common drivers are poor sleep, stress, dehydration, low activity, certain medications and blood-sugar swings.
Sleep, hydration, movement and steady meals address the most common causes. Supplements like MemoFlow are a gentle daily habit on top of those basics, not a replacement for them.
Persistent or worsening fog — especially with other symptoms — can signal thyroid issues, low B12, sleep apnea or medication effects. Get it checked.