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Hyponatremia Race Chugging Plain Water Risk

Hyponatremia race chugging plain water risk spikes when runners drink liters of water at every aid station without sodium—blood sodium drops, confusion and nausea follow.

Hyponatremia race chugging plain water risk spikes when runners drink liters of water at every aid station without sodium—blood sodium drops, confusion and nausea follow. Thirst is imperfect in cool long races; plan still matters.

Alternate water and electrolyte cups. Know your salty-sweater profile.

Stop if headache and bloating mid-race.

Common questions

  • Can drinking too much water in a race hurt you?

    Yes—excess plain water without sodium during long events can cause hyponatremia with confusion and nausea. Alternate electrolyte fluids on plan.

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