the king of the reapers

 'Thus far and no further'

Here comes one study.
It does remind us exsept alcoholics have shorter life expectancies that the most of those alcoholics live ill life with dementia.
Excessive alcohol use increase your risk for all types of dementia, sure, particularly early-onset dementia, by the journal Lancet Public Health: Contribution of alcohol use disorders to the burden of dementia in France 2008–13. Although many studies have shown a strong association between excessive alcohol use and dementia, this study is unique in its findings about early-onset dementia
According to this Lancia´'s text alcohol use disorders were strongly associated with dementia onset for any case definition of dementia, and when the full sample was considered with all exclusion criteria introduced among previous covariates. In other sensitivity analyses in older study populations selected on Jan 1, 2011, alcohol use disorders remained strongly associated with late-onset dementia.
The study looked at over 1 million adults released from French hospitals between 2008 and 2013 who were diagnosed with dementia, a clinical syndrome characterized by a progressive deterioration in cognitive ability.
Using data from the French National Hospital Discharge database, the researchers found that alcohol-use disorders were diagnosed in 16.5% of the men with dementia and 4% of the women with dementia -- over twice as much as in those without dementia for both sexes.