**Alcohol** is dangerous for road safety **even in small amounts**. This is because, when consumed, alcohol is distributed throughout the body via the bloodstream, primarily affecting the **brain** and **vision**. These effects can lead to a series of problems when driving:

- **Behavior**: Alcohol can create a false sense of security, leading to taking more risks and making mistakes that can cause accidents. It can also cause the driver to act more aggressively or impulsively.

- **Perception of the environment**: Under the influence of alcohol, it is more difficult to see traffic signs and traffic lights, accurately judge distances, and maintain attention on what is happening around. Additionally, the lights of other vehicles can dazzle more easily.

- **Coordination and decisions**: Alcohol affects the coordination of movements and slows down reaction time, increasing the likelihood of making poor decisions or being unable to execute them properly.

For these reasons, the consumption of alcohol, even in small amounts, is always dangerous when driving and is one of the main causes of traffic accidents.