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 States. "The Bones of What You Believe" received mostly positive reviews from music critics. At Metacritic, which assigns a weighted mean rating out of 100 to reviews from mainstream critics, the album received an average score of 80, based on 39 reviews, indicating "generally favorable reviews". Kyle Ryan of "The A.V. Club" complimented Mayberry's songwriting and wrote that Chvrches "have crafted one of the year's best albums, which means that buzz won't be dying down any time soon." Joe Rivers of "Clash" lauded the album as "an exceptionally strong debut where every track is a potential single", noting that "[n]ot