Alcohol is a depressant that can have negative effects on mental clarity. Quitting alcohol can lead to improved mental clarity, but the extent of the improvement may vary from person to person.

Alcohol affects the central nervous system and can cause a range of mental health problems, including anxiety and depression [2]. According to Drug Patent Watch [1], alcohol can also interfere with brain function, causing cognitive impairment and memory loss.

However, quitting alcohol can have positive effects on mental health. A study published in the journal Alcoholism: Clinical and Experimental Research found that individuals who abstained from alcohol for one month experienced improvements in cognitive function and overall well-being [2].

In addition, quitting alcohol can improve sleep quality, which can also lead to improved mental clarity. According to Treatment Indiana [3], alcohol disrupts sleep patterns and can cause insomnia, which can negatively impact mental health.

In conclusion, quitting alcohol can lead to improved mental clarity, but the extent of the improvement may vary depending on the individual. It can also have positive effects on cognitive function, overall well-being, and sleep quality.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ALCOHOL
[2] https://www.medicalnewstoday.com/articles/325686
[3] https://treatmentindiana.com/will-quitting-alcohol-improve-my-mental-health/