Drunk driving refers to operating a vehicle while under the influence of alcohol, which impairs a person's ability to drive safely. When a driver consumes alcohol, it affects their judgment, coordination, and reaction times, increasing the risk of accidents. Laws in many places set a legal limit for blood alcohol concentration (BAC), typically 0.08% for adults, above which driving is considered illegal. The consequences of drunk driving can be severe, including fines, license suspension, and even imprisonment. Additionally, it poses a significant danger to the driver, passengers, and others on the road. Organizations like MADD (Mothers Against Drunk Driving) work to raise awareness and promote prevention efforts to reduce incidents of drunk driving.