Do electrolytes help retain water or do they help absorb water? Also what even is an electrolyte?
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Electrolytes are salts. If you drink only water you will get headaches and feel bad because you are passively losing some salt as your kidneys try to remove the water. Electrolytes help with hydration because they match the salinity of your body so your kidneys don’t need to expel water to keep the proper salt to water ratio, thus you will pee less and be better hydrated. On the extreme end if you drink salt water you will become dehydrated since there is more salt in the water than in your blood so you will be at a water deficit.
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