it was a summer of promise for karen christiansen and ken jones. after ten years of marriage, they were expecting their first child. ken was teaching when he got the call... ken jones: it was a person from the y, and when they first started talking about karen, it was very strange because i thought it was going to have something to do with the pregnancy, and then when they said it was a stroke, it took a few minutes for it to kind of sink in. i went to the class, and that's all i remember. i know now that the teacher, she saw that i wasn't acting as normal or whatever that the other women were. the source of the problem was occurring inside karen's brain, the body's control center. dr. saver: the brain is an incredibly complex organ. it's the seat of the personality and thinking in our humanity. it has millions, or perhaps billions of nerve cells, and billions upon billions of connections between these nerve cells. it is organized in a very regular pattern from individual to individual. it is fed by a number of blood vessels that bring nutrients to