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.
What are signs or symptoms of kidney cancer? Unfortunately, kidney cancer rarely causes visible signs or symptoms in its early stages. In the later stages, the most common sign of both renal cell and transitional cell cancers is blood in the urine (hematuria).
In many cases, there are no obvious symptoms of kidney cancer at first and it may only be picked up during tests carried out for another reason. If symptoms do occur, they're often similar to those of less serious conditions, such as urinary tract infections (UTIs) or kidney stones.