Study: Blood Type AB Tied to Increased Dementia Risk

According to a new study, people with blood type AB, which includes about 4 percent of the population, are at an increased risk of dementia.

Over the course of the three-year study, the researchers found that people with blood type AB were almost twice as likely to show memory problems as those with type O blood, the most common blood group.

However, experts caution that there are other factors that are more likely to contribute to dementia, including smoking, lack of exercise, obesity and other lifestyle factors.

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