How do you "scientifically measure" if a person is clinically depressed or bipolar? Diagnosis is art and craft, both subjective and objective. But I have observed double-blind studies where neuroscientists look at EEGs and correctly identify the "addict pathway" brain wiring in alcoholics. I have seen genetic tests showing a particular variant of the D2 dopamine receptor gene that occurs in 77% of alcoholics. I reviewed twin studies, PET scans and fMRIs and I don't ask you to take my word but rather the word of the National Institutes of Health, which say that alcoholism is a physical condition characterized by an inability to moderate consumption of alcohol and other mind-altering substances.

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