^^
If you overdoit yes it will affect your voice but
I don't think she's a chain smoker and an alcoholic.
We have seen photos and pictures where she's drinking and smoking and yes
Her voice has changed but by growing older your voice changes.
Therefore her voice has gotten deeper and we can assume is not by drinking and smoking.
I'm not a doctor and I don't you think are either but
is all common sense and therefore this post is a matter of opinion.
thanks for your time