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In the three-month Mars Spirit rover mission, 250 NASA scientists
are living on Mars time, which is said to be creating one
of the worst cases of jet lag ever recorded. Scientists have
to adjust their schedules differently every day due to the
time it takes for Mars to rotate on its axis, which is 39
minutes and 35 seconds longer than the Earth’s rotation.
This means by the time the three-month period is over, scientists
will have moved through the Earth day two full times and be
coming around again.
When approached by NASA scientists about being fatigued,
top sleep experts decided to conduct a study on them. Scientists
were given tiny activity monitors to wear to help sleep experts
understand what the body does when waking up at different
times each day for months.
Along with this study, a more controlled and stricter experiment
was taking place with 35 of the Mars scientists. The scientists
were given accelerometers on their wrists that marked every
motion the scientists made and kept track of their sleeping
habits. Voluntary logs were given to the participants to note
when they tried to sleep.
Scientists were given the advice from sleep experts to limit
light exposure when they got off work because the light can
reset internal clocks in the body, which therefore can keep
a person awake when they need to be asleep.
Research has linked the lack of sleep to health aliments,
diminished memory and loss of concentration. Researchers are
hoping to someday be able to train a body to put up with different
circadian rhythm, which could guarantee a good night’s
sleep for everyone.
Boston
Globe January 13, 2004
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