A BAC level of 0.08% is the legal limit, however our driving can be impaired after just one drink.
Depending on physiology, alcohol will affect people differently.
Level (Alcohol Rehab Guide):
0.02 - Lack of judgment, increased relaxation, slightly increased body temperature, mood swings, decreased visual functionality, inability to multi-task.
0.05 - Increased lack of judgment, exaggerated behavior, lack of coordination, reduced ability to detect moving objects, lack of alertness, lack of inhibitions, decreased small-muscle control, reduced response rate.
0.08 - Reduced muscle coordination, lack of judgment, lack of reasoning, lack of self-control, loss of short-term memory, reduced ability to concentrate, lack of speed, reduced ability to process information.
0.10 - Poor coordination, slowed reaction times, reduced ability to control the vehicle, reduced ability to keep vehicle within a lane and brake at appropriate times, slurred speech.
0.15 - Extreme loss of balance, nearly zero muscle control, vomiting, impaired visual and auditory information processing, significantly reduced attention to driving tasks.