In the fourth segment of the Right Ratio of Rest: Proportional Reasoning, R. J. talks with Dr. Dave Williams about the things that interfere with astronauts sleep in space. Dr. Dave Williams tells R. J. what it is like to sleep in space. Later on, R. J. receives a call from Dr. Charles Czeisler, Dr. Czeisler gives R.J. a schedule so that R.J. can get the full amount of sleep that he needs. At the end of the segment Jennifer Pulley reviews what we learned about sleep patterns and rest.
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