Anemia is a condition in which the patient’s blood does not have enough healthy red blood cells. If a person does not have enough red blood cells, or if too many of them have abnormalities, the body may not be able to get enough oxygen. This can cause all manner of health problems because when the blood doesn’t have enough oxygen, the organs in the body lose the ability to function the way that they should. Anemia is prevalent, affecting more than 3 million people in the United States alone.

1. Headaches

One of the more common early warning signs of anemia is headaches. These headaches can range in severity from a light pressure in the head to a pounding that causes severe pain. Patients may also experience being light-headed or dizzy, especially when sitting down or standing up too quickly. In severe cases, this can also lead to fainting spells. Of course, all of these symptoms occur due to the lack of oxygen reaching the brain through healthy red blood cells. In most cases, when the iron count goes up, the symptoms lessen in both frequency and severity.