(CBS News) Your blood type may play a small role in your risk for dementia, a new study finds.
People with blood type AB, which includes about 4 percent of the population, appear to have an increased risk for memory problems as they age. Over about three years, individuals with blood type AB were almost twice as likely to show memory problems as those with type O blood, the most common blood group, the study found.
But experts cautioned that those with AB blood shouldn't panic because other circumstances play a bigger part in their risk for mental impairment.
Advertisement - story continues below