One third of the UK population suffers from insomnia, a prolonged and usually abnormal inability to obtain adequate, uninterrupted sleep.
英国三分之一的人口都饱受失眠之苦。他们长期的不能保证充足的稳定的睡眠。
A heavy meal at night causes tossing and turning and a prolonged emotional stress while at sleep.
晚上吃得很多会让你睡觉时辗转反侧并增加情绪上的压力。
After the rats were kept awake for prolonged periods, the probes showed areas of "local sleep" despite the animals' appearance of being awake and active.
老鼠睡醒后长时间内，探针显示出“局部睡眠”区，尽管老鼠看起来已经睡醒并且十分活跃。
Prolonged lack of sleep can disrupt your immune system, so you're less able to fend off bugs.
长时间的睡眠不足会破坏免疫系统，身体抵御病毒的能力就会因此下降。
Other studies have shown that lack of sleep, prolonged work hours and natural body-rhythm disturbances reduce the performance of drivers and pilots.
其他的研究表明，睡眠不足，长时间的工作和身体自然周期的紊乱会干扰司机和飞行员的表现。
Is prolonged lack of sleep associated with obesity?
睡眠缺乏延长与肥胖有关系吗？
As the time of sleep deprivation prolonged, the power of biological rhythm weakened.
随睡眠剥夺时间的延长，生物近日节律的作用减弱。
Scientists have identified the first biochemical marker linked to sleep loss, an enzyme in saliva known as amylase, which increases in activity when sleep deprivation is prolonged.
经研究发现首个与失眠有关的生化标记。该标记是唾液中的一种酶，学名淀粉酶。当延长睡眠剥夺时间时，这种淀粉酶的活性就会随之增高。
Sleep is an essential process. Laboratory animals that are deprived of it for prolonged periods of time eventually die.
睡眠对人们至关重要。被剥夺了睡眠的实验动物最终也只能死亡。
But true insomnia — a prolonged inability to sleep or, to enjoy uninterrupted restful sleep — is much less common than we generally suppose.
但是，真正的失眠- - -长期不能入睡或是长期难以享受连续的酣畅睡眠- - -比我们通常所想象的要少得多。
But true insomnia — a prolonged inability to sleep or, to enjoy uninterrupted restful sleep — is much less common than we generally suppose.
但是，真正的失眠- - -长期不能入睡或是长期难以享受连续的酣畅睡眠- - -比我们通常所想象的要少得多。
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