Drugs and Driving Alcohol is not the only drug that can affect your ability to drive safely. Many illicit drugs create effects that impair your senses, making it difficult to drive. Some common prescription drugs or over the counter drugs may make you drowsy...
What is Blood Alcohol Concentration (BAC)? Blood Alcohol Concentration (BAC) is a measure of the amount of alcohol that is present in blood, based on the volume of alcohol consumed over a given period of time. Alcohol is metabolized by the liver, where enzymes...