It’s replacing your mind. Same thing for drinking, you don’t worry about stuff as much so you tend to take things a little easier. I’ve stuttered since I was super little and I still do, not very much like I used to but still do. If found that talking to a beautiful and I mean BEAU-TIFUL chick, all the sudden I can’t talk at all and I stutter like crazy!! I noticed that a few times when I was sick and on medicine like NyQuil or Sudafed and I’m out in public for some reason, it’s so so so much easier to talk to the same woman because in my head I’m not over thinking anything and my mind is calm.