... alcohol addiction correlate the risk for addiction with social disorders in general, which can be seen from childhood. It is one of the points of this paper that such correlations do not represent a genetic predisposition to antisocial behavior, but rather a potential cause for alcoholism which is not necessarily genetic. Data: 1) The first study examines beta-endorphin (An endorphin produced by the pituitary gland that is a potent pain suppressant) responses to alcohol among monozygotic (MZ, of or from one fertilized egg, as identical twins) and dizygotic (DZ, developing from two fertilized eggs, as fraternal twins) twins. The study was conducted at the University of Indiana, and the subjects were 51 MZ and 37 same sex DZ twins. The hypothesis was that beta-endorphin levels as a response to alcohol consumption are determined by genetic factors. Also, it is hypothesized in this study that a higher level of beta-endorphins in ...

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