Anemia is a condition where the body doesn't have enough healthy red blood cells to carry adequate oxygen to its tissues. This can lead to feelings of fatigue, weakness, and shortness of breath. There are various types of anemia, with the most common being iron-deficiency anemia, which occurs when the body lacks sufficient iron to produce hemoglobin, the protein in red blood cells that binds oxygen. People can develop anemia for several reasons, including poor diet, chronic diseases, or genetic disorders. Symptoms may vary, but they often include pale skin, dizziness, and a rapid heartbeat. Treatment typically involves dietary changes, supplements, or medications to address the underlying cause of the anemia.