When was the last time you had your iron levels checked? The question is more important than you might think because iron deficiency is the most common cause of anemia. And studies show that adults who are anemic are 60-percent more likely to develop Alzheimer's disease. 

Neurologist Dr. Kristine Yaffe says that red blood cells carry oxygen to the tissues and cells throughout our body. But when we’re short on iron, we can’t produce enough red cells to get the job done, and our brain literally starts to suffocate from a lack of oxygen. Iron-deficiency anemia affects about one in every ten women. Meaning one out of ten women are at an increased risk for Alzheimer’s disease. 
Some early symptoms of anemia are fatigue, breathlessness and dizziness. But they can be so mild that many people don’t even realize they have a problem. One self-test you can do is to look at your tongue. If it’s pale, you could be deficient. So talk to your doctor because the fix could be as easy as eating more iron-rich foods, like lean red meat, spinach, egg yolks, cashews, chickpeas, scallops, lentils and raisins.