| 1. | Non - 24 - hour sleep - wake disorder
非24小时睡醒周期障碍 |
| 2. | Disorder of the sleep - wake schedule
觉醒节律障碍 |
| 3. | Irregular sleep - wake pattern
不规律的睡醒型态 |
| 4. | Other factors , such as work schedule can modify the sleep - wake cycle in humans
其他因素，如工作日程也会影响周期。 |
| 5. | Sleep - wake transition disorders
睡醒转换障碍 |
| 6. | Humans and animals generally have innate sleep - wake cycles close to but not exactly 24 hours
先天接近但不准确为24小时的睡醒周期是人和动物与生俱来的。 |
| 7. | Jet lag occurs when the body s natural rhythm and sleep - wake cycle are disturbed . symptoms of jet lag include difficulties in sleeping , tiredness , mood disturbances and gastrointestinal upset etc
地区的时差会令身体的自然节奏和睡眠周期受到扰乱，徵状包括难以入睡疲劳情绪波动肠胃不适等。 |
| 8. | Jet lag occurs when the body s natural rhythm and sleep - wake cycle are disturbed . symptoms of jet lag include difficulties in sleeping , tiredness , mood disturbances and gastrointestinal upset etc
地区的时差会令身体的自然节奏和睡眠周期受到扰乱，徵状包括难以入睡、疲劳、情绪波动、肠胃不适等。 |
| 9. | Melatonin production by the pineal gland is determined by the amount of light received , for the gland plays the role of a bodily clock , due to its sensitivity to light and regulation of the sleep - wake cycle
松果体会根据所接收到的光量多少来决定褪黑激素分泌的量，藉由对光的敏感度，松果体充当了人体内的一个时钟，掌控著每天苏醒和睡眠的时间。 |
