Detailed text transcripts for TV channel - CNN - 20181220:12:58:00
%-p. people know that exercise is good for the heart and brain. they thought this for a while. but the idea, especially the time when you have a lot of public schools especially cutting out physical activity time to really be able to have a study that shows the impact of physical activity on brain health i think, you know, a lot of people should pay attention to that. there is no question it helps someone like ruth bader ginsburg. it helps to maintain that mental sharpness and abocuity. >> you win. i'll go for a walk some time this week. thanks. all right. so the president defending his plan...