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).
Metastases are very common in kidney cancer and even happen to patients who have had nephrectomy or surgery. Some of the main symptoms of metastatic kidney cancer are: 1  Bone fractures.  Enlargement of a testicle (in men)