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How much water do you really need to drink to keep your brain sharp?

Water is essential for good brain function, with a handful of convincing studies suggesting that dehydration could be slowing you down, cognitively speaking. Columnist Helen Thomson explores how much water we should be drinking to stay sharp

How much water do you really need to drink to keep your brain sharp?

We haven't written up this one. New Scientist has the full story — the link below goes straight to it.

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