brain fog
noun
: a usually temporary state of diminished mental capacity marked by inability to concentrate or to think or reason clearly
Examples of brain fog in a Sentence
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Many people experience lapses in memory, brain fog, or trouble finding words, Dr. Rosenbloom says.
—
Carolyn L. Todd, SELF, 12 May 2025
The list included anxiety, medical trauma, brain fog, insomnia, depression, menopause, grief, infertility, loneliness, fear of dying and more.
—Vanessa Etienne, People.com, 24 Apr. 2025
My symptoms ranged from brain fog, fatigue and swelling to severe breakouts—the worst my skin had seen in at least a decade.
—Jessica Ourisman, Forbes, 21 Mar. 2025
Whether in the ocean, rivers, lakes, or your own personal cold plunge bath, enthusiasts claim that the therapy has a host of benefits, both mentally and physically, from reducing anxiety to reducing brain fog and improving focus.
—Sara Novak, Discover Magazine, 27 Mar. 2025
See All Example Sentences for brain fog
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Carolyn L. Todd, SELF, 12 May 2025
The list included anxiety, medical trauma, brain fog, insomnia, depression, menopause, grief, infertility, loneliness, fear of dying and more.
—Vanessa Etienne, People.com, 24 Apr. 2025
My symptoms ranged from brain fog, fatigue and swelling to severe breakouts—the worst my skin had seen in at least a decade.
—Jessica Ourisman, Forbes, 21 Mar. 2025
Whether in the ocean, rivers, lakes, or your own personal cold plunge bath, enthusiasts claim that the therapy has a host of benefits, both mentally and physically, from reducing anxiety to reducing brain fog and improving focus.
—Sara Novak, Discover Magazine, 27 Mar. 2025
See All Example Sentences for brain fog
Cite this Entry
“Brain fog.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brain%20fog. Accessed 21 May. 2025.
Copy CitationMedical Definition
brain fog
noun
: a usually temporary state of diminished mental capacity marked by inability to concentrate or to think or reason clearly
This brain fog can be a result of being overly stressed, tired, carrying extra weight, consuming too many calories or consistently consuming a diet poor in nutrients.—Kylie Helgens, The Gazette (Cedar Rapids, Iowa)
Kylie Helgens, The Gazette (Cedar Rapids, Iowa)Love words? Need even more definitions?
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