Answer:
Alcohol, if drank in certain ammounts before driving (2+ big glasses of wine ie) can slow down your reactions, so you don't know when you are going to crash, so you cant stop. it also affects your vision, so you may or may not be able to see what you are doing, depending on how much you drink. Alcohol is a central nervous system depressant that is quickly absorbed from the stomach into the bloodstream. The liver metabolizes the enzymes from the alcohol, however, the excess alcohol left circulates the bloodstream, which gives euphoric effects to the user thus distorting their view of reality.