Finally, the coughing reflex in reaction to irritants in the airway produces not a cough during sleep but a cessation of breathing.

最后，对呼吸道刺激物的咳嗽反射不会导致人们在睡眠期咳嗽，而会造成呼吸暂停。

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These factors and sleep established very strong conditioned reflex, slightly change will affect sleep, so some people change a place it will be difficult to fall asleep.

这些因素与睡眠建立了十分牢固的条件反射，稍有改变就会影响睡眠，所以有的人换一个地方就难以入睡。

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Because of the nervous reflex activity in sleep, the muscles of the throat relax, the food is easy to slide into the trachea, is very dangerous.

由于睡眠时神经反射活动减弱，咽喉肌肉松弛，食物容易滑入气管，是非常危险的。

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Dr. Daniel Hanley, professor of neurology at Johns Hopkins Medicine, in Maryland, told CNN that VS is a coma-like state in which patients have a sleep and wake cycle, and can show reflex chewing, swallowing and blinking, but don't respond to language or stimulation.

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