Detailed text transcripts for TV channel - CNN - 20190811:14:45:00
Daniel. he wrote "when," the scientific secrets of perfect times. >> thanks for having me. >> the biggest question i think people will have is when am i most productive as a human being. >> yeah. there is a lot of good research on that in a number of different fields. our cognitive abilities, our brain power does not remain consta constant. it changes over the course of the day. it changes in material ways, and it changes in predictable ways. >> one of the things that, when looking at this point of a cycle, its led you to make a personal decision about when to go to a doctor, when to get a med...