But of course Smith cannot direct your internal clocks and definitions of success in life.

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However, some other internal clocks readjusted at different rates and weren't all working correctly until the eighth day.

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Like people, hamsters follow precise circadian rhythms, so changes in time will similarly throw off their internal clocks.

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Stalled in a Western, these time travellers from the manic, jumped-up nineteen-eighties adjust their internal clocks and do what characters in Westerns do: they wait.

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Gene Block, a professor of psychiatry and biobehavioral sciences at University of California, Los Angeles, and colleagues found that by middle age, the signal the master body clock in the brain sends out to other internal clocks to help resynchronize the different processes gets weaker.

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But clocks are bulky and poorly suited to shipboard swaying, which can disrupt their internal mechanisms.

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