What are signs or symptoms of exercise associated hyponatremia?
Symptoms become pronounced when serum sodium levels fall below 135 mmol/L and water begins to flow into the body cells. Early symptoms include puffiness (e.g., swollen fingers, tight fitting watch), nausea, vomiting, progressively worsening headache, and a sense of “just not feeling right.” More serious symptoms will show when worsening brain swelling leads to confusion, irritability, agitation, and seizures. Left untreated, hyponatremia can progress to serious brain and lung swelling, coma and death. It can take time for hyponatremia symptoms to appear and progress to a dangerous level, so keep an eye out for the symptoms even a few hours after the race, especially if you or a friend fit a high risk profile. If you do not feel thirsty, it is important not to drink large amounts of fluids until you are urinating normally. 7. What causes exercise associated hyponatremia (EAH)? Exercise associated hyponatremia (EAH) has been shown to occur in marathon runners who maintain or gain weight
