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The Boston Globe

Science

‘Chemo brain’ confusion may result from stress, not medicines

‘‘Chemo brain,’’ a term describing the forgetfulness and cognitive fog that breast-cancer patients undergoing chemotherapy experience, may have more to do with the stress and fatigue caused by the disease, a study suggests.

More women with breast cancer scored lower on cognitive function tests before getting chemotherapy than did those without the disease, according to research presented Friday at the San Antonio Breast Cancer Symposium in Texas.

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