What is dehydration and how does Gatorade help?? Dehydration happens when your body doesn't have the fluids it needs. Mainly, you lose fluids through sweat, but also through frequent urination. Research has shown you can lose a gallon of fluid an hour during heavy exercise. If you don't replace the amount of fluid you lose, your body will start to protect itself by limiting your activity. Which is not what you want to happen if …showed first 75 words of 776 total…

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