The Effect of Cerebrospinal Fluid on the Brain

When we go to sleep at night, there's a fluid which is called cerebrospinal fluid. When we sleep, that fluid sort of is like a car wash for our brain. It just kind of just gives it a little clean. Is this why you can wake up with this bits of foam dripping out of your mouth because of the washing going on at the brain? Yeah. So, what that does is washing your brain. And quite often if you see anyone picking up a brain like a neuroscientist or whatever, then it's already been preserved in some way. If I cut the top of your head off now and scooped out your brain, it would just fall through