The risk of suffering a fatal accident increases significantly with a high **blood alcohol concentration**. With **1.5 grams of alcohol per liter of blood**, the risk is **20 times greater**.

- **Alcohol in the body**: Alcohol is distributed throughout the body via the blood, primarily affecting the **brain** and **vision**. This can lead to a false sense of security, greater exposure to risks, and aggressive or impulsive behavior at the wheel.

- **Effects on driving**: Alcohol affects the ability to see traffic signs, judge distances, and coordinate movements. It also increases reaction time and the likelihood of making poor decisions.

- **Permitted blood alcohol concentration**: For most drivers, the maximum permitted level is **0.5 grams per liter of blood**. Exceeding this limit, especially up to **1.5 grams**, drastically increases the risk of serious accidents.

For these reasons, it is crucial to avoid alcohol consumption before driving to ensure road safety.