the.com/dehydration

Your body shrinking a lie it tells about how much water you actually need.

means The state of having lost more fluid than you've taken in, so your body doesn't have enough water to function normally.

from Built from Greek 'hydor' (water) with the prefix 'de-' (removal, reversal) and the noun-forming '-ation.' 'Hydor' is the same root behind 'hydrant,' 'hydrogen,' and 'hydraulic' — the element itself gave language its word for water, and 'dehydration' simply names the act of taking that water away.

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Thirst kicks in after you are already behind
brain shrinkage
Severe cases can measurably shrink brain tissue
urine clue
Pale yellow pee is the honest hydration gauge
performance hit
Just 2 percent fluid loss dulls focus and strength
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