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: Flank pain - Pain on one side of the body between the upper abdomen and the back. Abdominal Mass - a mass in the area of the kidneys discovered during an examination. Anemia - a condition in which the number of red blood cells is below normal.
Signs and symptoms of kidney disease may include: 1  Nausea. 2  Vomiting. 3  Loss of appetite. 4  Fatigue and weakness. 5  Sleep problems. 6  Changes in urine output. 7  Decreased mental sharpness. 8  Muscle twitches and cramps. 9  Hiccups.