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),
The Bones of What You Believe The Bones of What You Believe The Bones of What You Believe is the debut studio album by Scottish synth-pop band Chvrches, released on 20 September 2013 by Virgin Records and Goodbye Records. Recorded between 2011 and 2013 in Glasgow, the album was written, composed, and produced by the band as a collaborative effort. It was made available as both a 12-track standard edition and an 18-track special version, the latter including two extra songs, two remixes and two live videos. The album was debuted with a launch party broadcast live on music streaming platform Boiler Room. The album's title