Nutrition
Hyponatremia Awareness
Hyponatremia awareness separates low sodium from bonking—avoid over-drinking plain water on long hot efforts without electrolytes.
Hyponatremia awareness means knowing low blood sodium can occur when plain water intake far exceeds sweat salt loss in long hot events—symptoms include headache, confusion, nausea, and swelling, unlike a bonk fixed by carbs. Prevention pairs drink-to-thirst with electrolytes on multi-hour efforts; never force gallons without sodium.
Medical help beats self-treating confusion with more water.
Common questions
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Can hyponatremia happen if you are not thirsty?
Yes—some athletes over-drink on schedule in cool weather. Match fluids to thirst and include sodium on long hot efforts; swelling and confusion are stop signals for medical care.
Related terms
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