Is it true by drinking water our brain works well?

Question

Is it true by drinking water our brain works well?

Answer 1

recommended drinking 8 glasses of water a day will help everything work better

Answer 2

Our brain wouldn't operate without water! Our bodies are mostly water and when we get dehydrated critical body organs including the brain begin to lose functionality.

Any beverage that doesn't dehydrate (ones with lots of caffeine or alcohol for example) provides the body with hydration.

Water is still the best way to hydrate your body, so drinking it is a very good practice to get into.