Latest L. Armstrong controversy

The amazing thing about the use of drugs in sport is the users are always ahead of the pack...perhaps Testosterone does have other effects............. Erythropoiesis is the production of new red blood cells. This is accomplished primarily in the bone marrow, the red blood cell factory, so to speak. Erythropoiesis is stimulated primarily by erythropoietin (hence, the clever naming of that hormone!). Erythropoietin is produced in the kidneys. Androgens, including testosterone, are another type of hormone. One of the effects of androgens is to increase the production of erythropoietin. Another is to increase the responsiveness of immature bone marrow cells to the effects of erythropoietin. Simplistically, testosterone increases the output and effectiveness of erythropoietin, which in turn stimulates the production and regulation or red blood cells. Testosterone, and other androgens, has many other effects as well, which is why it is not used primarily for erythropoiesis. Does anyone know if the affect above...unlike the anabolic effect...is more immediate???

The amazing thing about the use of drugs in sport is the users are always ahead of the pack...perhaps Testosterone does have other effects............. Erythropoiesis is the production of new red blood cells. This is accomplished primarily in the bone marrow, the red blood cell factory, so to speak. Erythropoiesis is stimulated primarily by erythropoietin (hence, the clever naming of that hormone!). Erythropoietin is produced in the kidneys. Androgens, including testosterone, are another type of hormone. One of the effects of androgens is to increase the production of erythropoietin. Another is to increase the responsiveness of immature bone marrow cells to the effects of erythropoietin. Simplistically, testosterone increases the output and effectiveness of erythropoietin, which in turn stimulates the production and regulation or red blood cells. Testosterone, and other androgens, has many other effects as well, which is why it is not used primarily for erythropoiesis. Does anyone know if the affect above...unlike the anabolic effect...is more immediate???