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Jessa Gamble: Our natural sleep cycle


Jessa Gamble: Our natural sleep cycle
Jessa Gamble: Our natural sleep cycle
Duration: 4:01

In today's world, balancing school, work, kids and more, most of us can only hope for the recommended eight hours of sleep. Examining the science behind our body's internal clock, Jessa Gamble reveals the surprising and substantial program of rest we should be observing.