Heat cramps are muscle pains or spasms – usually in the abdomen, arms, or legs that may occur in association with strenuous activity.
People who sweat a lot during strenuous activity are prone to heat cramps. This sweating depletes the body’s salt and moisture. The low salt level 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, seek medical attention for heat cramps.