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Overtired? Why caffeine won't do the trick

Name: Overtired? Why caffeine won't do the trick
Uploaded: 2016-06-21T11:40:01-0400
Duration: 4 min 40 s
Description: CBS News chief medical correspondent Dr. Jon LaPook discusses a new study that found caffeine is not effective at boosting alertness in people who are too sleep-deprived.

CBS News chief medical correspondent Dr. Jon LaPook discusses a new study that found caffeine is not effective at boosting alertness in people who are too sleep-deprived.