Drunk driving is the act of operating a motor vehicle while the operator's ability to do so impaired as a result of alcohol consumption, or with a blood alcohol level in excess of the legal limit. For drivers 21 years or older, driving with a blood alcohol concentration (BAC) of 0.08% or higher is illegal.
Our pupils dilate when we are seeing something stimulating or we are in low light. If we are aroused our pupils dilate in order to take in more of our pleasing surroundings. Often during courtship pupils stay dilated. You can tell when someone is aroused by looking closely at their pupils in constant surrounding light.
The full list of all possible causes for Pupil dilation described in various sources is as follows: 1  Acute Chemical poisoning -- Varnish makers' and painters' Naptha - mydriasis. 2  Addiction - glassy eyes.  Adie's syndrome - causing one pupil to react more slowly than the other.