Potassium is a major cation in the electrolytes of cells, helping to facilitate the contraction of skeletal and smooth muscles, including the contraction of the heart muscle. It is extremely important and indispensable in neuromuscular activities. So what is the normal blood potassium level?

Hypokalemia or low blood potassium is a condition in which the body cannot retain enough potassium to maintain normal functioning, which in some cases can lead to death. So what causes hypokalemia and how does it affect health?