Biological clock the internal mechanism of an organism that regulates cercadian rhythms and various other periodic cycles 生物钟：生物体内部的一种控制昼夜节律和各种其他周期性节律的机制。
Monarch butterflies use the sun to set their body clocks and make their journeys , according to us scientists 据美国科学家所说，帝王蝶其实是利用太阳调节自身的生物钟，并最终完成迁移旅程的。
Other biological clocks are timed to the ebb and flow of the tides , or the phases of the moon , or the seasons of the year 其他的生物钟是按照潮水的涨落，月亮的盈亏或一年的季节变化而调定的。
To reduce the effects of jet lag , some doctors try to manipulate the biological clock with a technique called light therapy 为了缓减飞行时差的影响，一些医生试图用一种叫光照疗法来操纵生物钟。
Time zone changes , internal body clock disruptions and irregular food and exercise patterns can all result in a sleep debt 时区改变，生物钟被打破，不规则的饮食以及运动过量都可以导致睡眠缺少。
Time zone changes , internal body clock disruptions and irregular food and exercise patterns can all result in a sleep debt 时区变化，内部生物钟紊乱以及不规律的饮食，运动习惯都会导致睡眠不足。
Time zone changes , internal body clock disruptions and irregular food and exercise patterns can all result in a sleep debt 时区改变，体内生物钟扰乱及不规律的饮食与做习模式可以导致欠下睡眠债。
Time zone changes , internal body clock disruptions and irregular food and exercise patterns can all result in a sleep debt 时区的改变，体内生物钟的紊乱，以及不规律的饮食和运动都会导致睡眠债。
Time zone changes , internal body clock disruptions and irregular food and exercise patterns can all result in a sleep debt 时区改变,国内的生物钟受到破坏,没有规律的饮食和运动类型都会导致睡眠债
By tinkering with the clocks of plants and animals , scientists may learn more about the fascinating way our bodies work 通过调整植物和动物的生物钟，科学家们可以更多了解我们身体运作的神秘方式。
