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Heat cramps are muscle spasms that occur due to strenuous activity or a hot environment. Follow the links below to find WebMD's comprehensive coverage about how heat cramps are caused, symptoms of heat cramps, treatments, prevention, and much more.

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Thumbnail: Exercising in the Heat

Exercising in the heat can be risky if you're not prepared. These tips can help you keep your workouts safe.

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Heart Rate Calculator

Ensure you're exercising hard enough to get a good workout, but not strain your heart.

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