Could Type AB Blood Be a Risk Factor for Dementia?

Individuals with blood type AB appear to be more likely to develop the thinking and memory problems that lead to dementia, according to a new study involving over 30,000 participants. However, because more studies are needed to confirm their findings, the researchers advise people with type AB blood not to be overly worried and that instead they (including those with other blood types) should focus on living a healthy lifestyle by not smoking, exercising on a regular basis, maintaining a healthy diet and weight, and controlling their blood pressure and blood sugar levels.

American Academy of Neurology, September 2014