[MichaelTerry]

I take it you mean what influence alcohol has on the brain. It´s effect is to constrict the blood vessels going to the brain with the consequence that less oxygen can get there which gives you that woozy feeling when you imbibe too excess.

[agumonkey]

There's more to it. I have blood/c.v problems, I feel when blood flow is constricted, and when it happen I'm not woozy, I'm crippled. Like a piece of dead wood.