DEAR MAYO CLINIC: I am prone to kidney stones, so I know it's important for me to stay hydrated while I exercise. But do I need to change what I drink in the summer? A friend mentioned that I might be better with a sports drink versus water. I'm also wondering how much I should drink. Can you provide any advice?
ANSWER: Staying hydrated during exercise is important. You can become dehydrated if you take in too little fluid, especially during the hot summer months. Conversely, consuming too much fluid can be problematic. Some people are known to experience what is known as exercise-induced low sodium, or hyponatremia. Finding a balance is importance.
The purpose of drinking fluid — whether water or electrolyte-containing beverages — is to rehydrate the body and put fluid back into your system so your organs can function properly.
