Drinking too much water (water intoxication) can decrease sodium in the blood to dangerously low levels, causing mild to life-threatening problems. People who participate in endurance activities, such as a marathon or triathlon, are at risk.
Confusion, nausea, and vomiting are symptoms. Severe cases can cause seizures, coma, and death.
Treatments are fluid restriction, IV fluids high in sodium, and medications.
Last Updated Jun 13, 2017