margaret spinelli is a psychiatrist, like myself, except competent. and she is interested in post-partum depression. and she is going to tell bus hormonal changes that are associated with it, some of the things that are likely to increase the likelihood of depression, and also therapeutic approaches to available to it. 10% to 20% of women come down with post-partum depression. post-partum depression, as you mentioned, also occurs in men and david is a person who suffered from this. it's 5% to 10% of men. the reason one doesn't know more about this is because most men are reluctant to discuss it. we're so fortunate to have david here. >> rose: absolutely. >> who is a physician, a pediatrician, but has the courage to discuss it, which is not only wonderful for us but really beneficial from other people who might suffer from post-partum depression to realize to talk about it is normal. this is nothing to be ashamed of. and it may be helpful for both the person who suffers from it and the people around him. we're in for a terrific program which may make u

about that are a remarkable group of scientists, catherine dulac, susanne shultz, charles nelson margaret spinelli, and my co-host, dr. eric kandel. he is a howard hughes medical investigator. i'm pleased to have all of them here at this table this evening. guest: in discussing the biology of parenting, we are going to discuss a number of topics. one is the remarkable similarity of parenting throughout the animal kingdom. we're also going to discuss parental and collect and how -- discuss parental neglect and how disasters that can be. we're also going to look at the changes that occur imposed partum depression. in the last program, we considered the biology of aggression and we learned from david anderson's work that the hypothalamus is concerned with aggression. there are nerves in the hypothalamus recruited for aggression and they are located right next to ron's concerned -- neurons concerned with mating. moreover, there is a population in between that can respond to either of those two instinctual drives depending on the intensity of the stimulation. if you stimulate weekly, you recruit mating