Just a general question I like to get people's responses on.. Personally I don't drink alcohol or use drugs. Never have and never will. But I've worked with people who have shown signs of alcohol abuse.

Once I had a coworker who had the "shakes" and at first I thought he just had a neurological problem. Come to find out he had a drinking problem and may have been an alcoholic. His personality was always a bit gruff, short fused.

I've worked with others in my life who exhibited the same personality, and come to find out they all have been heavy drinkers.

Just the other day when putting the trash out I noticed my neighbors glass recycling bin was stuffed full of empty beer bottles.

This got me wondering and perhaps you all can give insight .. How prevalent is non-alcoholism heavy drinking? Do you think heavy occasional drinking can cause sober personality disorters.

I tend to think heavy drinking permanently messes up the brain, but I'm not a doctor.

Thanks.