Driver fatigue refers to a state of physical and mental exhaustion that impairs a person's ability to operate a vehicle safely. It can result from long hours of driving, lack of sleep, or monotonous driving conditions. When a driver is fatigued, their reaction times slow down, attention wanes, and decision-making abilities diminish, increasing the risk of accidents. Common signs of driver fatigue include yawning, heavy eyelids, and difficulty concentrating. To combat fatigue, it is essential for drivers to take regular breaks, get adequate sleep before long trips, and stay hydrated. Awareness of driver fatigue can help promote safer driving practices and reduce road incidents.