Among others, which symptom is an indication of fatigue?
Human factor: Physical factors
Explanation
**Fatigue** is a state that can severely affect the ability to drive safely. One of the **clear symptoms of fatigue** is that the driver constantly moves in the seat and changes posture. This happens because the body is seeking a more comfortable position due to physical or psychological tiredness.
- **Constant movements in the seat**: This behavior is a sign that the driver is uncomfortable and is trying to relieve the feeling of tiredness. It is an attempt to stay alert and combat fatigue.
Other symptoms of fatigue include difficulty concentrating, heavy eyes, and a feeling of pressure in the head. However, constant movements in the seat are a visible physical indication that can alert the driver that they need to rest.
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