Sodium in biology mEq/liter (135 - 145 mmol/L). A serum sodium level of less than 135 mEq/L qualifies as hyponatremia, which is considered severe when the serum sodium level is below 125 mEq/L. The renin–angiotensin system and the atrial natriuretic peptide indirectly regulate the amount of signal transduction in the human central nervous system, which depends on sodium ion motion across the nerve cell membrane, in all nerves. Sodium is thus important in neuron function and osmoregulation between cells and the extracellular fluid; the distribution of sodium ions are mediated in all animals by sodium–potassium pumps, which are active transporter solute pumps, pumping
Human Element Robotoki was shut down on January 20, 2015 due to lack of publishing deal of the premium version of the game and the inability of the founder of the company to self-fund the development of the game. The game is currently on hiatus. Human Element Human Element was an online multiplayer video game under development by Robotoki for Microsoft Windows, PlayStation 4, and Xbox One. Development was halted when the studio was closed as indicated by a farewell message on Robotoki's (now defunct) blog on January 20, 2015, by the studio's founder, Robert Bowling. "Human Element" is the first game