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.
The primary function of potassium in your body is to serve as an electrolyte. This type of molecule becomes ionized in solution, making it capable of carrying an electrical charge. In this role, potassium influences many of your bodyâs processes, and it works in concert with sodium to exert its effects.