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health4h ago
Speaking Two Languages May Affect Dementia Risk in an Unexpected Way
- A Canadian study linked bilingualism, memory, and sex hormones to brain resilience and dementia risk.
- Higher resilience scores were linked to less dementia pathology and better MoCA performance.
- Bilingual men showed greater brain protection than bilingual women in the study.
- Aromatization of testosterone to estradiol may enhance the protective effect when combined with bilingualism.
- Study used COMPASS-ND data, including over 1,200 Canadian adults, across 30 sites.
- Verbal memory performance differed by sex, with women typically outperforming men.
- The research emphasizes viewing dementia risk through multiple interacting factors rather than in isolation.
- The study highlights the importance of measures beyond verbal memory for refining dementia diagnoses.
- Researchers call for more work on how sex hormones affect brain health and dementia risk.
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