analyze the problem. >> larry: can you look in a microscope, a brain in a microscope and tell me about that person? >> i can look at a scan and tell you a lot about that person. >> larry: really? >> whether they're going to be impulsive or compulsive. >> larry: just looking at the scan? >> just looking at the scan. it's very important. back to your point. my daughter's pregnant. and how her health is during her pregnancy will have a huge impact on that baby, and for the baby's rest of life. >> larry: and the brain? >> and how smart they are. how adaptable they are. how anxious they are. so taking care of pregnant mothers is just critical. and a lot of people don't know they're pregnant until, you know, week six. and the brain starts to develop at week three. so if they're drinking early and they don't even know they're pregnant, it can potential live have a huge impact. >> larry: you talk about drug addiction. a puzzling problem right after this. i used to see the puddles,