A ciggarette nigh is nothing more than poison going into your body, and all of that carbon monoxide, fiberglass, tar and nicotine(along with 496 other chemicals), is what is getting you "high." You keep smoking, you'll get addicted, and all of that light headed feeling, will disapear. All you'll have left is every few hours or so, you'll get the shakes and start niccing out. Sounds fun huh?