Anemia is the reduction in the amount of red blood cells circulating in the blood. If the body’s red blood cells are low, every cell in the body is suffering from an inability to make sufficient energy. This leads to fatigue and a compromised organ function. Anemia is very common and occurs in a wide range of specific diseases and in many non-specific chronic illnesses. Having one’s red blood cell levels assessed to detect any abnormalities should occur annually.