(a) BAC: Blood Alcohol Content
Referring to the ethanol percent in blood in units of mass.
(b) ALDH (aldehyde dehydrogenase)
Aldehine catalizator is an enzyme. Transforms the aldehydes to carboxylic acids, using water to add the oxygen.
(c) Drug deposition tolerance of alcohol
It's refearing when someone needs more alcohol to reach the same effect. When a person uses alcohol regularly, at some point to get drunk will need more ml than a person that never drinks.
(d) Wernicke-Korsakoff syndrome
It is a brain disorder caused by lacking vitamin B1 as a side effect on alcohol abuse.