brain fog

[ breyn fog, fawg ]

noun

1. a mental state marked by difficulty remembering, concentrating, or thinking clearly, often caused by exhaustion, stress, or illness: For new parents, fatigue and brain fog seem inevitable.

   He had so much brain fog that a single thought felt impossible.

   For new parents, fatigue and brain fog seem inevitable.

   Research has found that long COVID can cause brain fog and memory loss.

Word History and Origins

Origin of brain fog¹

First recorded in 1850–55; brain ( def ) + fog ¹( def )

Example Sentences

She was stunned to find that a lot of her symptoms - which included brain fog, low mood, joint pain and anxiety - became “vastly better” when she began using progesterone cream topically.

From BBC

He said brain fog was one of the most common symptoms among women who attended the Northern Health Trust's menopause clinics.

From BBC

HRT is routinely used to help alleviate their symptoms, such as brain fog, hot flushes and mood swings.

From BBC

Due to lockdown she struggled to access her local GP, so started taking over-the-counter medication to try to relieve her brain fog, anxiety and hot flushes.

From BBC

"The lack of sleep, irritability, brain fog - she'd be awake for hours in the night, hot sweats every single day. Everything was becoming difficult."

From BBC