It is difficult at the moment to understand how consuming alcohol affects your body and your brain. Because of the effects of the substance, you cannot realize the changes in your abilities.
This misperception can lead you to drink too much before getting behind the wheel. The legal blood alcohol content limit is .08%, but you will discover that even before that point, alcohol affects your ability to drive safely.
According to the National Highway Traffic Safety Administration, limitations to your abilities begin at only a 0.02% BAC. At this point, you are already having some visual disturbances and trouble being able to do more than one thing at a time. The alcohol in your bloodstream also impacts your judgment.
At a 0.05% BAC, you experience issues with coordination. Your response time slows down. You also have more visual issues, such as problems tracking objects with your eyes.
At the legal limit of 0.08% BAC, you will finally have major issues with information processing, You will struggle with perception and concentration. You also may have trouble controlling your body and memory loss.
At 0.10%, you are over the legal limit. You will have issues with reaction time and controlling your vehicle due to coordination issues. Your thinking will also slow down, making it tough to react quickly.
Once you reach 0.15% BAC, you have an extreme lack of ability to control your muscles. You will be off-balance and not be able to focus. You will have profound issues processing information, and visual issues will be dangerously affecting your ability to see properly.