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.
Role of Sodium in Muscle Function. Sodium plays a role in communication between your nervous system and your muscle tissue to control muscle movement. Before a muscle contraction occurs, sodium rushes into your nerve cells, triggering the transmission of a small electrical signal.When your muscles sense this signal, your muscle fibers shorten and contract.efore a muscle contraction occurs, sodium rushes into your nerve cells, triggering the transmission of a small electrical signal. When your muscles sense this signal, your muscle fibers shorten and contract.