Alcoholic dementia early signs

I’m worried about my mom. She’s young-ish, 46, and there’s some things I notice within her.

She’s been drinking for a long time now, and a lot. Sometimes she might forget where a specific location is although we’ve lived in this town since 2006. Sometimes she’ll get someone’s name wrong whom we’ve met recently, but contacted with enough where she should remember. There are other small moments like these, too.

I know she’s young, so it could be seen as me looking too much into it and she’s just sometimes forgetful, but when alcoholic dementia is the case it seems a little different and that it could impact earlier.

Has someone here dealt with anyone suffering with alcoholic dementia, or know anything about it to determine the early symptoms and what age those symptoms might start occurring?