Health Capsule Anemia is the most widespread blood condition in the United States. It develops when the body doesn't produce enough healthy red blood cells. These cells are essential because they transport oxygen from the lungs to the rest of the body. Without enough red blood cells, you might experience fatigue, weakness, dizziness, or shortness of breath. Other signs can include headaches, a pale complexion, or cold hands and feet. However, milder forms of anemia may not show any