What do kidneys do?
Each roughly the size of your fist, kidneys are located deep in the abdomen, beneath the rib cage.
The main job of your kidneys is to remove excess water and toxins from your blood.
Your kidneys control blood stream levels of many minerals and molecules including sodium and potassium, and help to control blood acidity.
Every day your kidneys carefully control the salt and water in your body so that your blood pressure remains the same.
Kidneys also help to produce red blood cells and to keep your bones healthy.