One of the most common symptoms observed in individuals with cancer, including this one, is chronic fatigue and weakness. The prevalence of these symptoms is not surprising because malignant tumors are made of cells. All cells require energy, which is produced by processes that require nutrients like glucose and oxygen. Cancerous cells use up more glucose faster than healthy cells do because they are constantly growing and dividing.
Due to this property of cancerous cells, healthy cells become deprived of the nutrients needed to produce enough cellular energy to carry out their functions. This lack of energy causes the body to implement a mechanism to compensate for the reduced amount of energy, where ATP is allocated to organs vital to sustaining life. This process takes energy from non-critical cells like those that form the limb muscles to cater to the cells of vital organs. The redistribution of energy causes a multiple myeloma patient to experience chronic fatigue.
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