what are electrolytes?

Electrolytes are tiny electronically charged particles that are lost via sweat during exercise. The four main electrolytes that play vital roles in hydration and exercise performance are: sodium, potassium, magnesium, and calcium.

Sodium 
sodium
maintains fluids balance
Potassium 
potassium
prevents muscle cramps
Magnesium 
magnesium
relaxes muscles
Calcium 
calcium
required for normal muscle functions
Chloride 
chloride
facilitates fluid transport