Red blood cell blood circulation for about 100 to 120 days (and 80 to 90 days in a full term infant). At the end of their lifespan, they are removed from circulation. In many chronic diseases, the lifespan of the red blood cells is reduced. Erythropoiesis is the process by which new red blood cells are produced; it lasts about 7 days. Through this process red blood cells are continuously produced in the red bone marrow of large bones. (In the embryo, the liver is the main site of red blood cell production.) The production can be stimulated by the hormone erythropoietin (EPO),
Soft tissue disorder injuries. This area of expertise has become known as soft tissue therapy and is rapidly expanding as the technology continues to improve the ability of these specialists to identify problem areas more quickly. A promising new method of treating wounds and soft tissue injuries is via platelet growth factor (PGF). There is a close overlap between the term "soft tissue disorder" and rheumatism. Sometimes the term "soft tissue rheumatic disorders" is used to describe these conditions. Soft tissue disorder Soft tissue disorders are medical conditions affecting soft tissue. Often soft tissue injuries are some of the most chronically painful and