He has written for Foreign Policy,The Guardian, Foreign Affairs, Politico and a host of other publications. The Interpreter Joins RFE/RL. We are proud to announce that, starting January 1, 2016, The Interpreter will be a special project of Radio Free Europe/Radio Liberty.
1 Sodium plays a large role in fluid balance, with different variations of sodium determining the shift of water by osmosis from one area of the body to another.  Along with chloride and bicarbonate, sodium is important for the proper regulation of the acid-base balance of the body.
Sodium's role in the body. Sodium is one of the bodyâs three major electrolytes (potassium and chloride are the other two). Electrolytes control the fluids going in and out of the bodyâs tissues and cells. Salt is a major source of electrolytes. Sodium contributes to: Regulating blood pressure and blood volume.