My favourite professor of pharmacology and toxicology Dr. Bill Sullivan is back (okay, he's the only one I know but he's legit awesome) and this time we chat about the way our genetics affect (and/or relate to) everything from introversion and extraversion, to our likelihood of becoming an addict, our physiological responses to stress, anxiety and depression, the idea of creating an environment in which we 'work best', why Ozzy Osbourne is a genetic freak (literally) who can consume profound amounts of booze without the (normal) damage, whether we actually have free will, the relationship between genetics, discipline and self-control, and lots more. Enjoy.

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