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A 26-year-old female asked:

Is it true that people with ab blood type are likely to develop cognitive impairment? 2 weeks old niece has ab negative and parents are worrying

1 doctor answer2 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Not worth worry: There are some emerging citations of increased risk of diminished cognition with age compared to non AB, but the numbers are not large & much of this is speculative. What would you do differently if your risk of dementia at 70 is higher than the population. By the time a 2 week old gets that age we may have conquered the issue.

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Last updated Oct 16, 2018

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