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In some cases, cognitive impairment is reversible, but up to one-third of individuals with stroke develop dementia within five years.
The findings were seen in a study of people living with Meniere disease.
Associations were seen with processing speed, attention, and executive function in the older UK Biobank cohort (ages 44 to 83 years).
The protective effect, however, appears to differ by race and ethnicity.
A new study shows that shared family factors may explain previous findings.
No significant improvement was seen for behavioral and psychological symptoms or sleep, however.
Cognition partially mediated the association between race/ethnicity and scores on a 39-item Parkinson’s disease questionnaire.
The findings are based on a 72-month follow-up of older adults undergoing major elective surgery.
No association was seen for changes in immediate or delayed memory.
The number of diagnosed concussions and length of playing career were not tied to later cognition.