The consumption of **drugs** significantly affects **road safety** for several reasons:

- **Negative effects on driving:** Each type of drug has specific effects that can be dangerous when driving. For example, **cannabis** can alter color perception, make it difficult to judge distances, and increase reaction time. **Cocaine** can make the driver more impulsive and lose the sense of danger. **Ecstasy** can cause hallucinations and increase sensitivity to light. **LSD** can provoke hallucinations and aggressive reactions. **Amphetamines** can lead to impulsive behaviors and a false sense of alertness that suddenly fades, causing extreme fatigue.

- **Risk of accidents:** One in ten people who die in traffic accidents had consumed drugs before driving. This demonstrates the high risk involved in driving under the influence of these substances.

- **Legal prohibition:** It is prohibited to drive any vehicle if drugs that are still in the body have been consumed, unless they are prescribed medications that do not affect driving. The laws are strict, and penalties are applied to those who refuse to undergo drug detection tests when requested by the authorities.

In summary, drug consumption has a significant impact on road safety due to its harmful effects on driving ability and the high risk of accidents it entails.