More. 1  Oxygen Levels and Brain Function The brain consumes about 25 percent of a personâs oxygen intake, so proper brain function requires enough blood oxygen. 2  How Oxygen Affects the Heart The heart is a key player in making sure oxygenated blood travels to the organs and tissues that need it.
Other possible kidney cancer symptoms may include: 1  Persistent pain in the side of the abdomen or the back, which is not the result of an injury. 2  A mass or lump in the abdomen. 3  Feeling fatigued.  Unexplained, sometimes rapid, weight 1  loss. A fever that is not due to an illness.
Kidney symptoms are signs of abnormalities in kidney function. The kidneys are responsible for filtering waste out of the bloodstream. Healthy kidneys function continuously and the bodyâs total blood supply passes through the kidneys several times each minute.idney symptoms can be either systemic or kidney specific. Common kidney symptoms include changes in urine output; pain or burning with urination; changes in the color, smell, or appearance of urine; or pain in the sides or abdomen.