Kidney

The kidneys are a pair of organs, each located on either side of the spinal cord below the rib cage that filter metabolic waste products from the blood. The waste is turned into urine and eliminated from the body. In addition, kidneys help control the body's fluid balance and help keep the right levels of electrolytes circulating in the bloodstream.

The adrenal glands sit atop the kidneys.

Research studies

 * 2016, Widespread pain and altered renal function in ME/CFS patients (Abstract)