Susceptibility to alcohol abuse appears to run in families and is the subject of vigorous ongoing investigations to locate genes that contribute. It is probable that the effects of multiple genes and environment are involved in alcoholism. Twin studies have shown a stronger concordance between identical than between nonidentical twins (55% or greater concordance for monozygotic twins and 28% for same sex dizygotic twins). Genetic differences in alcohol metabolism may result in higher levels of a metabolite that produces pleasure for those with a predisposition toward alcohol abuse.
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Alcoholism is something that can't be formed in easy terms. Alcoholism as a whole refers to the circumstance whereby there's an obsession in man to keep ingesting beverages with alcohol content which is injurious to health. The circumstance of alcoholism doesn't let the person addicted have any command over ingestion despite being cognizant of the damaging consequences ensuing from it.