259. 疲労
疲労は、運転中の集中力、反応時間、判断力、覚醒維持能力を低下させます。長時間運転、睡眠不足、病気、不規則勤務、身体が通常休息を求める時間帯の運転などで生じます。頻繁なあくび、まぶたが重い、速度や車線位置を一定に保てない、走行区間を思い出せないなどが警告サインです。眠気を感じたら早めに停止・休息し、カフェイン、外気、大音量音楽を睡眠の代わりにしてはいけません。
Why is fatigue dangerous when driving?
Fatigue can slow reaction time, reduce concentration and impair judgement, increasing the risk of missing hazards or losing control of the vehicle.
What are common signs of driver fatigue?
Warning signs include frequent yawning, heavy eyelids, difficulty concentrating, drifting within the lane and forgetting parts of the journey.
What is a microsleep?
A microsleep is a very brief episode of sleep that can last only a few seconds. During that time, the driver may be completely unaware of the road and unable to react.
What should you do if you feel tired while driving?
Stop at a safe place and rest before continuing. If possible, take a short nap or end the journey until you are sufficiently rested.
Does coffee remove driver fatigue?
Caffeine may temporarily improve alertness, but it does not replace adequate sleep. A tired driver should still stop and rest.
When is fatigue most likely to affect drivers?
Fatigue is more likely after long periods of driving, insufficient sleep, night driving or driving during normal sleeping hours.

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