**Drugs** negatively affect the **perception of risk** when driving. This means that, under their influence, people tend to underestimate dangers and make riskier decisions.

- **Cannabis**: It can alter the perception of the environment, making colors appear different and making it difficult to judge distances. It also decreases concentration and lengthens reaction time, which can lead to falling asleep at the wheel.

- **Cocaine**: Increases impulsivity and aggressiveness, and reduces the sense of danger, which can lead to more reckless driving.

- **Ecstasy**: Causes hallucinations and sensitivity to light, affecting concentration and potentially causing fatigue after its effects wear off.

- **LSD**: Generates hallucinations and can trigger aggressive reactions, anxiety, or panic.

- **Amphetamines**: Decrease patience and increase impulsive and violent behaviors, as well as reduce the sense of danger.

The consumption of drugs before driving is extremely dangerous and is prohibited, as one in ten people who die in traffic accidents had consumed drugs. Driving is only allowed after consuming prescribed medications that do not affect driving.

In summary, drugs decrease the perception of risk, which can lead to dangerous driving and increase the likelihood of accidents.