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chemo brain

American

[kee-moh breyn] / ˈki moʊ ˌbreɪn /

noun

Medicine/Medical Informal.

a common side effect of some cancer treatments that is characterized by cognitive impairments, such as memory and recall difficulties, confusion, difficulty concentrating, or loss of mental alertness.

Example Sentences

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chemo brain

Overall, the findings indicate that exercise may help preserve cognitive function and lessen some symptoms of chemo brain during treatment.

From Science Daily ● Jun. 10, 2026

Patients undergoing chemotherapy often experience cognitive effects such as memory impairment and difficulty concentrating -- a condition commonly known as "chemo brain."

From Science Daily ● Mar. 6, 2024

She completed that with "chemo brain" but said the university was "amazing" at supporting her.

From BBC ● Feb. 25, 2022

The causes of this so-called chemo brain remain somewhat mysterious, Dr. Salerno said, but probably involve a complex interplay between physical and psychological side effects from the disease and treatment.

From New York Times ● Oct. 6, 2021

He told her there was something wrong, and it was not chemo brain.

From Seattle Times ● Dec. 18, 2010

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023