You have probably heard of iron-deficiency anemia, but do you actually know what it is?
Iron-deficiency anemia is a common, often chronic, blood disorder in which your body’s cells do not receive enough oxygen. To understand iron-deficiency anemia, we must first learn how oxygen is transported to your cells for cellular respiration.
When you breathe, oxygen enters your body through your lungs (more specifically your bronchi and bronchioles). It then travels to the alveoli, tiny balloon-like structures where gas exchange occurs. Once oxygen passes through the alveoli, it enters your bloodstream in the circulatory system. Here, red blood cells use a protein called hemoglobin to “pick up” and transport oxygen.
The oxygen is then delivered to your cells so that it can be used to create usable energy through cellular respiration. In summary, cellular respiration is a chemical reaction in which cells use enzymes found in the mitochondria to break down glucose using oxygen. When these bonds are broken, energy called adenosine triphosphate (ATP) is released. The atoms are then rearranged into the products carbon dioxide (released as a waste product) and water (absorbed by the cell as a byproduct).
Now, our question is: how does this change if you are anemic?
If you have iron-deficiency anemia, your body does not have enough iron. The most common cause is not getting enough iron-rich foods, such as tofu, brown rice, and beans. However, other causes can include blood loss and pregnancy.
Iron is a key component needed to make hemoglobin (the protein that red blood cells use to transport oxygen). With less iron in the body, less hemoglobin can be produced. This affects your body because if red blood cells do not have enough hemoglobin, they cannot transport as much oxygen to your cells. Over time, your cells receive less oxygen.
This results in a decrease in the rate of cellular respiration because cellular respiration requires oxygen. With less oxygen available, less cellular respiration occurs. As a result, your cells produce less usable energy (ATP), which can disrupt the normal functioning of body cells. This can lead to common symptoms such as fatigue, headaches, and pica (the craving for non-food substances such as dirt, clay, or mud).
Are there any cures or lifestyle changes for a person with anemia?
The main treatment for iron-deficiency anemia is taking iron supplements. These supplements provide your body with more iron so it can produce more hemoglobin to transport oxygen to your cells. People with anemia often take these supplements every other day, although some take them daily for about 3–6 months to restore iron levels in the body.
In more severe cases, some people may receive a blood transfusion. A blood transfusion provides the body with more red blood cells that can transport oxygen. However, this treatment is less common because it is usually temporary and is typically only used in serious cases.
Many people with anemia also try to improve their diets by focusing on iron-rich foods. This helps provide the body with more iron to produce hemoglobin and transport oxygen to cells. Most people with anemia can still do their normal exercises, but they may become out of breath more easily. This happens because their red blood cells must work harder, with less hemoglobin, to transport oxygen throughout the body.
In the end, iron-deficiency anemia shows how important iron is for keeping our bodies running properly. Without enough iron, our red blood cells cannot carry the oxygen our cells need to produce energy. This can leave people feeling tired, weak, and out of breath. Fortunately, with the right treatment and a diet that includes iron-rich foods, many people can improve their iron levels and help their bodies function normally again. Overall, iron may be a small nutrient, but it plays a very big role in keeping our cells and our bodies full of energy.
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