What condition is characterized by a deficiency in red blood cells or hemoglobin?
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Anemia
Hemoglobin is the iron-rich protein in red blood cells that carries oxygen from your lungs to the rest of your body. When levels are low, the body struggles to get enough oxygen, which is why the most common symptom of anemia is persistent fatigue.
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- What medical condition is defined by a shortage of hemoglobin or red blood cells?