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article that describes the energy metabolism of cells
Metabolism One of the most common postpartum symptoms is a lack of energy. While some fatigue is certainly par for the course, debilitating fatigue – such that day after day you feel you cannot even get out of bed – is not. [ Some women say they are absolutely exhausted and yet cannot sleep at night, even while their babies are sleeping. We have found that many women who lack energy also
complain about weakness in their muscles and a rapid heart rate. The good news is that many women who thought their fatigue was normal have been surprised at how much more energetic they can be with a few nutritional and lifestyle adjustments. Let's go down to the cellular level and examine what happens there to drain your energy reserves. This may sound complicated at first, but hang in there and you will discover why it is so important to get the right nutrients to maintain your energy. Where does your body get energy from? You probably know that the food you eat is metabolized, or burned," in your body to make energy. The foods you eat are broken down into their most basic components in your digestive system, or gastrointestinal tract. These basic nutrient components amino acids from protein foods, glucose (sugar) from carbohydrates, and fatty acids from fats are then absorbed into tiny blood and lymphatic vessels that line the intestines. The nutrients then either pass through the liver or circulate in the bloodstream until they are taken up by cells that need fuel. Vitamins, minerals, and other micronutrients (nutrients that take part in bodily processes but are not burned for energy) are absorbed and circulated in a similar way. Important parts of the metabolic process then happen in microscopic power plants called mitochondria that exist in almost every cell in your body. About 2,500 mitochondria sit within each kind of cell in the body (except for red blood cells), and some cells can increase the numbers of mitochondria they have if the body perceives a need for more energy. ]
Expert answered|ambrosio_09|Points 175|
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Asked 10/20/2010 11:18:21 PM
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