[stana (OP)]

Hey guys. I was wondering. Can water enter into my brain? like if im in the shower..and i tilt my head..can it enter my brain? 

Thanks

[Bored chemist]

No, there are a few things in the way; the ear drum would be the first to stop any water.
http://en.wikipedia.org/wiki/Ear

[chris]

Hello Stana

water certainly can enter your brain...from your bloodstream, but definitely not from the outside world. As bored chemist says, there are numerous structures that seal off the environment of the CNS from the rest of the body.

Chris