This article points to a supplement that may prevent chemo brain. Several things-

1) This study points to n-acetyl cysteine as a preventative before chemotherapy- not to heal chemo brain after chemo therapy (though i supplement with it in hopes of regaining my full brain function )

2)A researcher is quoted in the article saying that chemo brain is experienced for up to two years- I have experienced this side effect for at least 10 years-yes, my chemo brain improved but I still suffer deficits-

Newswise — Anyone who has recognized a person but then struggled with the particulars – “I know I know her, but how…?” – can also appreciate the distinction between “familiarity” and “recollection.”

Recollection, as defined by memory specialists, is the ability to call up specific details about an encounter, while familiarity is simply knowing that someone or something has been encountered before. Both are elements of recognition memory and both, new research suggests, are functions of the brain’s hippocampus.