What diseases does alcoholism cause?

Alcoholism causes: chronic damage to lots of systems, the most notable are kidney and liver--those being the two systems most engaged in eliminating the toxic substances that ethanol becomes (acetaldehyde to acetic acid to acetyl-CoA.). Permanent brain damage (Korsakov's syndrome) can result from chronic exposure to ethanol and its nor-metabolites. Let the body deal with its own ethanol from natural digestion...