What is the effect of two or more drinks on driving performance?

Consuming two or more drinks can significantly impair a driver's judgment and increase the risk of accidents. Alcohol affects the central nervous system, leading to reduced cognitive functions, such as impaired decision-making and slower reaction times. As a person consumes alcohol, their ability to assess situations accurately diminishes, making it harder to respond effectively to unexpected events while driving. This impairment can lead to a false sense of confidence, causing individuals to take risks they normally wouldn’t, such as speeding or engaging in aggressive driving behaviors. Therefore, the cumulative effect of alcohol on a driver’s judgment directly contributes to an elevated risk of accidents, making it essential for individuals to refrain from driving after consuming alcohol.

In contrast, the other choices reflect misunderstandings of alcohol's impact. Some may incorrectly believe that drinking does not significantly affect performance, or that it can somehow improve reaction times, which is contrary to evidence demonstrating that alcohol consistently detracts from these abilities. Additionally, stating that it only affects certain individuals overlooks the widespread and recognized effects alcohol has on general driving performance, regardless of individual tolerance levels.