Final answer:
Electrolytes are salts that are important in cell function and are necessary for nerve impulse conduction, muscle contractions, and water balance in the human body. Athletes often drink Gatorade to replace the electrolytes lost through sweating during exercise.
Step-by-step explanation:
Electrolytes are salts that are important in cell function and are necessary for nerve impulse conduction, muscle contractions, and water balance in the human body. Examples of electrolytes include sodium, potassium, and calcium. Athletes often drink Gatorade, a sports drink that contains electrolytes, to replace the electrolytes lost through sweating during exercise.