The Ferritin test evaluates iron stores in the body, which are critical for various physiological processes, including red blood cell production and oxygen transport. Low ferritin levels are commonly associated with iron deficiency anemia, presenting with symptoms like fatigue, weakness, and dizziness. High ferritin levels can be indicative of iron overload disorders such as hemochromatosis or chronic inflammation. The test is useful for diagnosing and managing these conditions and monitoring overall iron health.