The correct answer among the choices given is option A. Erythropoietin is the performance-enhancing drugs has the side effect of thickening of the blood. It is present in our body at certain levels because it promotes the production of red blood cells. It i used to treat anemia resulting from kidney failure or cancer treatment.
Aerobic exercise like running, jogging, swimming and walking because all of these get your heart rate up.
Ill say writing a list of goals
