The Truth About Alcohol. There are many dangerous ideas about the use of alcohol. The driver who believes in these wrong ideas will be more likely to get into trouble. It is the alcohol in drinks that affects human performance. How alcohol works .
Alcohol goes directly from the stomach into the blood stream.
A drinker can control the amount of alcohol which he or she takes in, by having fewer drinks or none. However, the drinker cannot control how fast the body gets rid of alcohol. If you have drinks faster than the body can get rid of them, you will have more alcohol in your body and your driving will be more affected. What Determines Blood Alcohol Concentration. Alcohol and the Brain.