Alcohol causes a loss of judgment and alertness.

酒精会使人丧失判断力和警觉性。

The drug improved mental alertness.

这种药物提高了大脑的灵敏度。

A short nap can promote alertness and improve performance, which are important when you are at work.

小睡一会儿可以提高机警性，提高工作表现，这在你工作时是很重要的。

Decades of studies of bird flocks led researchers to predict extra alertness in the more vulnerable, end of the row sleepers.

通过对鸟群几十年的研究，研究人员预测，那些更容易受伤的、睡眠时处于队列末端的鸟会格外警觉。

Another flaw of the tiredness theory is that yawning does not raise alertness or physiological activity, as the theory would predict.

疲劳理论的另一个缺陷是，打哈欠并不能像该理论所预测的那样，提高警觉性或生理活跃度。

That purpose is alertness.

这个目的就是警惕。

They also increase alertness and energy.

它们也能提高机敏性和精力。

It made some evolutionary sense, that state of alertness.

那种警觉的状态会形成某种进化感。

Research has shown that the lavender scent increases alertness.

研究表明薰衣草香味会提高人的警惕性。

Do not assume that more sleep equals more energy and alertness.

但不要以为多睡就意味着精力充沛。

Overall I feel more energy and alertness during daylight hours.

白天小睡后感觉精神更饱满一些，所以在白天我也会觉得更充沛一些。

Moss said the healthier breakfast probably aided classtime alertness.

莫斯说更为健康的早餐几乎可以肯定是有助于上课时的机敏程度的。

Participants rated their levels of anxiety, alertness and headache.

研究人员测量他们的焦虑、清醒及头痛程度。

You will feel rested and you'll notice your mood and alertness improve.

你会感到充分休息情绪和敏锐度提高。

This area sends signals to boost alertness as the pressure to sleep mounts.

当睡眠压力增加时，视交叉上核会发送信号以提高警觉性。

Your heightened alertness will enable you to be more relaxed and less tense.

加强防范，会让你多点轻松，少些紧张。

The greatest sources of food to boost your alertness, concentration, and energy are

富含酪氨酸的食物能让你机敏灵活、精力集中、活力四射，这些食物包括

The art of meditation helps to promote a beautiful blend of relaxation and alertness.

冥想的艺术有助与促进放松和警觉的完美结合。

Raudenbush concluded that the stimulants in chocolate increased mental alertness.

罗登·布希博士的结论是，巧克力中的兴奋剂提升了大脑的灵活度。

It has also been linked with increasing memory retention and recall as well as improving alertness.

它也与增强记忆力的持久性和回忆能力，以及提高机敏性有关。

Environmental issues such as noise and level of alertness may interfere with learning new behaviors.

环境问题诸如噪音和警戒的水平也许会妨碍新行为的学习。

EEGs show that we are biphasic sleepers with two alertness dips — one at night time and one mid-day.

脑电图显示，作为两阶段睡眠者的我们，每天确实有两段时间会警觉性下降-分别是晚上和中午。

As a new manager, you should use the "alertness approach" when selecting an appropriate managerial style.

作为一个新任经理，你应该“机敏”地选择一种合适的管理风格。

Studies regularly show that eating breakfast improves mood, mental alertness, concentration, and memory.

长期的研究表明吃早饭能够改善情绪，保持思维敏捷，注意力集中以及良好的记忆力。

Caffeine is defined as a drug because it stimulates the central nervous system, causing increased alertness.

它之所以被定义为一种药物，是因为它会刺激中枢神经系统，让人神智更加清醒。

If you have to be up all night, a two-hour or a four-hour nap does provide additional alertness the next day.

如果不得不熬一整夜，那么两小时或四个小时的午睡能让你次日格外灵敏。