Kidneys are one of the most important organs, because they filter our blood, the very substance that keeps us alive by transporting oxygen and minerals throughout the body. They also perform other tasks, such as regulating blood pressure or maintain electrolyte balance. Initially, kidney failure may be asymptomatic, meaning that it causes no visible symptoms; however, as the condition progresses, it will likely cause more visible symptoms to appear. Some of the most common symptoms include lethargy, weakness, shortness of breath, and generalized weakness. Because kidney failure can be a life-threatening disease, it is of utmost importance to go see your doctor. If diagnosed with kidney failure, the treatment options mainly consist of lifestyle changes coupled with dialysis, a treatment that mimics some of the functions of the kidney. In some cases, a kidney transplant may be considered.