Caffeine and Sleep Deprivation

Caffeine often seems like the perfect solution to sleep deprivation—something to give us just enough energy to get through the rest of the day. But is it really? Kimberly Fenn says gulping down caffeine won't help you with tough tasks if you've missed multiple hours of sleep. Fenn is an associate professor of Psychology and director of the Sleep ad Learning lab at Michigan State University. (Segment produced by Sam Faulconer)