Yes it is!
Well yeah your body needs water
Have an opinion?
Yes, considering if you don't drink water you'll die, and dead people aren't known for their braininess xD
Being hydrared is super essentional for brain function.
Are you kidding? Seriously?Yes, aside from oxygen (you know, that shit you breath?), water is the most vital thing you can consume. Most people don't have enough.
Well I'm aware of that i was asking in terms of brain function. I know you can't live without water but i was asking if it improves your brain function