hormonal and metabolic disorders
Overview of Sodium's Role in the Body
Introduction
Sodium is one of the body's Overview of Electrolytes , which are Most of the body’s sodium is located in the blood and in the fluid around cells. Sodium helps the body keep fluids in a normal balance (see About Body Water ). Sodium plays a key role in normal nerve and muscle function. Sodium enters the body through food and drink and leaves the body primarily in sweat and urine. Healthy kidneys maintain a consistent level of sodium in the body by adjusting the amount excreted in the urine. When sodium consumption and loss are not in balance, the total amount of sodium in the body is affected. The amount (concentration) of sodium in the blood may be Too low ( Hyponatremia (Low Level of Sodium in the Blood) ) Too high ( Hypernatremia (High Level of Sodium in the Blood) ) 