The **speed** at which you drive has a direct relationship with the **severity of injuries** in the event of an accident. The higher the speed, the more severe the consequences tend to be. This is due to several factors:

- **Reaction to unforeseen events**: Driving at high speed makes it difficult to react quickly to unexpected situations, increasing the risk of making mistakes that can result in serious accidents.

- **Tunnel vision**: At high speeds, the field of vision is reduced, limiting the ability to see what is happening on the sides and increasing the risk of collisions.

- **Speed limits**: These are established to ensure safety. For example, in urban areas, driving at less than 50 km/h reduces the severity of pedestrian accidents. On roads and highways, respecting the limits of 90 km/h and 120 km/h respectively, decreases the severity of accidents.

- **Appropriate speed**: Driving at a speed that matches the weather conditions, the road, and the driver's state allows for better control of the vehicle and reduces the likelihood of fatal accidents.

In summary, respecting speed limits and adjusting speed to environmental conditions are key measures to minimize the risk of serious injuries in the event of an accident.