Electrolytes 101? (Read 289 times)

I've heard about electrolytes for years and I know they're important, but what exactly are they and how do they relate to running?  

 

If I were to guess I would think they are the metallic ions that our body uses for a variety of digestive and hormonal purposes -- Magnesium, Sodium, Potassium....calcium?  phosphorous? 

One thing is for sure, electrolytes won't help you grow crops.  They are not what plants need.

 

If you can convince people of this fact, sir, you can change the world.