I have my permit now I need help

Hay! I'm a brain man!

well, after I check out the hair...
and a few other things.

And men are geared for dangerous situations - so we keep our brains in more than one location. In stock market talk, this is 'diversification'. If something goes bad with one, there's a spare.

Of course, this can lead to Alzheimer's - this happens when the phone line between the brains gets all static-y