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red blood cells are mainly hemoglobin. hemoglobin is mostly iron. hemoglobin binds oxygen and transports it to the body. when it is low, heart rate goes up and the heart works much harder to get oxygen to the body. thus, one feels tired so that the body will slow down and the heart can pump the blood to the tissues.
Increased blood flow helps muscle cells release more energy. This is because the blood delivers the products needed for the cell to function.
because if they have fewer red blood cells then they will not be able to absorb as much oxygen (what with haemoglobin and all) this means they must breath more and this, well, is tiring. also respiration requires more oxygen than anaemic people can supply
Red blood cells (RBCs) are the oxygen-carrying cells in circulation in the body. RBCs contain the molecule hemoglobin that can bind oxygen (O2) and transport it all over the body. Anemia is lack of sufficient RBCs (and hemoglobin) to carry enough O2. You get tired easily, have muscle weakness, and your heart struggles. Your bone marrow will produce more RBCs that need more hemoglobin to fill them. Hemoglobin has iron in the center that binds to the O2. So you need RBC production from the bone marrow and iron intake from the diet to produce more O2-carrying capacity. This causes your RBC count, the number of RBCs in circulation per unit volume, to increase. RBC count is called the Red Cell Count (RCC). RCC in cells/femtoliter = hematocrit divided by mean corpuscular volume in femtoliters per cell.
you are so tired because all your white blood cells are trying to fight off the cold and it causes you to be tired because they use energy.
A complete blood count (CBC) is a fairly broad blood test that is very helpful when you're sick. Your blood is comprised of many different parts. When you're sick it affects the different parts of the blood in different ways. For example, if you have an infection, your white blood cells (your defense system) will likely be higher than normal. Or, if you have been feeling more tired than usual perhaps your red blood cells (which carry iron) are low and you need to take an iron supplement.
Does to much protein in your blood make you tired?
White blood cells are the body's best defensive weapons in the fight against germs and disease. Without adequate protection from these disease-fighting cells, viruses and bacteria suddenly become much more serious threats.-White blood cell count is typically seen in chemotherapy patients.
When you are tired, often it is because your blood sugar levels are low. By eating food, you top up your blood sugar and you therefore don't feel as tired. When you are tired, often it is because your blood sugar levels are low. By eating food, you top up your blood sugar and you therefore don't feel as tired.
Most likely there is an infection. My daughter is 5 and her wbc is 16000 and she has fever. She just went to the doctor. She has the flu-throwing up and VERY tired. The doctor is sending her for an ultra sound to rule out appendicitis and another wo9rd i can't spell. Hope this helps you.
It is because your red blood cells carry oxygen to your muscles and organs which you need to live, the less oxygen you have circulating, the more tired you become. It's the body's way to try and make you rest, and therefore take in more oxygen.
shut ur eyes nd count sheep!!!!!
Red blood cells, also called erythrocytes, are responsible for the characteristic color of our blood. They are responsible for picking up carbon dioxide from our blood and for transporting oxygen. The essential component of red blood cells is hemoglobin, which can hold oxygen so the cells can then transport around the body. This process is what gives the body energy, which explains why people who suffer from anemia - low count red blood cells - often feel tired and sleepy. A high count of red blood cells is rare, but it can happen. Causes include kidney disease, dehydration, anabolic steroid use, and pulmonary fibrosis. People suffering from a high count of red blood cells usually have impaired circulation, and are at a high risk for heart disease. While blood cells or leukocytes, on the other hand, are primarily responsible for fighting foreign organisms that enter the body. This includes everything from bacterial and parasitic infections to allergic response. T-cells, a form of white blood cells, are the ones that stop functioning properly in the presence of an HIV. An overproduction of white blood cells can lead to leukemia. On the other hand, certain medications, such as Clozapine®, used in psychiatry, can reduce the number of white cells significantly.
When someone is tired, he or she yawns to increase the oxygen content in the blood. The blood is then carried to the brain which increases alertness or in other words wakes you up.Fun Fact! All animals can yawn!When sleepy or tired, you yawn to increase the oxygen content in the blood. The blood is then carried to the brain for increased alertness.
Yes it will get you tired, and i learn my lesson from donating blood, cause you need your blood and you have a risk of getting sick and having a weak immune system save your blood before its to late"
iron