March Madness basketball excites a lot of people in many ways, including into gambling on the games, the brackets, the point spread, etc. So we talk a bit about sports and gambling, and the various factors involved. Also we chat about the fact that no strata of our society is immune to addiction. The hormone oxytocin is the subject of a new study from Australia, correlating its under-development at an early age with addiction. We also discuss other hormones and neurotransmitters that are involved in addiction proclivities and tendencies. And another gene, which leads people to extremely aggressive behavior, is also correlated to addiction.