Correct answer
No; it may affect you earlier, and there is no universal start or disappearance at one hour.
No. Alcohol may be detectable in blood within a few minutes and peak concentration is usually reached between 30 and 90 minutes, varying with the amount consumed, food and other factors. Detectability does not establish an identical instant of impairment for everyone. One hour is neither a universal start nor end of its effects, and feeling well does not demonstrate fitness to drive. The safe choice is not to drink if driving.
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Yes, it cannot affect driving before one hour.
Yes, its effects always disappear one hour after the last drink.
No; it may affect you earlier, and there is no universal start or disappearance at one hour.
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