One of the main causes of mortality in motorcycle accidents is **not wearing a helmet**.

- **Head injuries** are the leading cause of death in two-wheeled vehicle accidents. The helmet is a **passive safety** element that protects the head and can save lives. In fact, three out of ten people who have a motorcycle accident survive thanks to wearing a helmet.

- In motorcycle and moped accidents, the consequences are more severe when the occupants do not wear a helmet. This is because, in the event of a crash, the head is one of the most vulnerable parts of the body.

- Additionally, among young people, not wearing a helmet is one of the causes of traffic accidents, as some believe they do not need it, which increases the risk of serious or fatal injuries.

Therefore, wearing a helmet is crucial to reducing mortality in motorcycle accidents.