Final answer:
Driving while fatigued can impair cognitive and motor functions similar to alcohol intoxication, making it true that fatigue can be as dangerous as driving under the influence.
Step-by-step explanation:
Driving while fatigued can indeed be as dangerous as driving under the influence of alcohol. Studies, such as those by Williamson & Feyer (2000), have found that sleep deprivation can significantly impair cognitive and motor functions, to a degree that is comparable to the effects of alcohol intoxication. Furthermore, the most severe effects of sleep deprivation have been observed when an individual stays awake for more than 24 hours or experiences repeated nights with fewer than four hours of sleep, leading to issues such as irritability, distractibility, and impairments in cognitive and moral judgment. Therefore, the statement is true: driving while fatigued can be as dangerous as driving under the influence of alcohol.