Which of the following is NOT an effect of alcohol?

In the context of the effects of alcohol, increased focus is not typically associated with alcohol consumption. Alcohol is a depressant that affects the central nervous system, leading to a range of impairments in cognitive functions. While people may feel more relaxed or experience heightened emotional responses, these feelings do not equate to increased mental clarity or concentration.

On the other hand, heightened emotions, drowsiness, and impaired judgment are well-documented effects of alcohol. Heightened emotions can occur as alcohol can lower inhibitions, making individuals more expressive or volatile in their emotional responses. Drowsiness is common as alcohol can induce sleepiness, particularly at higher consumption levels. Impaired judgment is also a critical effect as alcohol can hinder a person's ability to make rational decisions, which is why responsible serving practices are emphasized in training for those obtaining an OLCC server permit.