That is correct!
• Heat cramps are muscle pain or spasms in the abdomen, arms, or legs that might result from strenuous activity.
• People who sweat a lot during strenuous activity are prone to heat cramps.
• Sweating depletes the body of salt and moisture. Low salt levels in the muscles causes painful cramps.
• Heat cramps may also be a symptom of heat exhaustion.
• If you have heart problems or are on a low-sodium diet, you are at risk for heat cramps and should seek medical attention.