Alcohol causes a loss of judgment and alertness.
酒精会使人丧失判断力和警觉性。
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。
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。
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。
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。
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。
Drinking too much booze affects your sleep pattern and quality as well as daytime alertness.
过度酗酒不仅影响睡眠模式和质量，还会影响白天的警觉性。
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。
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。
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。
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。
Poor sleep results in worse cognitive performance, including degraded memory, attention, performance and alertness.
低质量的睡眠往往会导致人们在认知方面的不佳表现，这包括记忆力、注意力、行为表现以及警觉性都会有所减弱。
Objective alertness was measured by hourly testing, alternating the PVT with the Maintenance of Wakefulness test (MWT).
每隔一小时测量一次参与者的客观警觉性，心理动作警觉作业测试与清醒度维持测试交换进行。
So in testing, the combination of a cup of coffee with an immediate nap chaser provided the most alertness for the longest period of time.
而试验也证明，一杯咖啡过后的小睡能够让人坚持精神亢奋的时间最长。
At noon and 6 p.m., researchers measured how both groups performed in facial memory tests, finger tapping memory tests and an alertness test.
在中午和下午6点，研究者测量两组人在以下测试中的表现——面部记忆测试、手指敲击记忆测试和警觉性测试。
The Mayo Clinic in Rochester, Minn., defines an adequate amount of sleep as whatever produces daytime alertness and a feeling of well-being.
明尼苏达州Rochester的Mayo诊所断言适量的睡眠可以使白天精力充沛，感觉良好。
The algorithm measures six mood levels – happiness, kindness, alertness, sureness, vitality and calmness – through people’s text on the internet.
这一算法通过人们在因特网所发布的文字来测量六种情绪水平——喜悦、仁慈、警觉、稳定、活力和镇定。
Protein, on the other hand, prompts the brain to manufacture norepinephrine and dopamine, chemical messengers that promote alertness and activity.
另一方面，蛋白质促进大脑生成降肾上腺素和多巴胺，这些是促进机体警觉和活跃的化学信使。
The hens also changed their behaviour, and reacted with increased alertness, decreased preening and increased vocalisations directed to their chicks.
母鸡也会改变行为，提高警觉性，减少梳理羽毛的次数，增加向雏鸡发声的次数。
The different types of nutrients we eat, including carbohydrate and protein, affect these transmitters differently, triggering drowsiness or alertness.
我们吃不同的营养成分(包括糖和蛋白质)对这些递质的影响大不一样，引起困意或者兴奋。
They compared the alertness of people who slept eight hours a night to that of people who slept less but took a nap during the day. Both groups were equivalent.
他们将晚间睡8小时者的敏锐性与晚上少睡但白天午睡者的进行比较，结果两组相等。
Since I've read that energy and alertness plummet during the first week, I've kept next week's schedule very light mentally (no meetings, speeches, or major projects).
因为精力和敏锐度在第一个星期会急剧下降，所以下一周的安排都是很少动脑子的事(没有会议、演讲、主要项目)。
To avoid puffy, bloodshot eyes, dark under-eye circles and a pale washed-out complexion — and for peak alertness and energy — experts say you need eight hours of sleep a night.
专家们说，人每天的正常睡眠应达到8小时，这样才能保证头脑清醒，精力充沛，避免出现眼睛浮肿、充血，黑眼圈，和面色苍白等现象。
CHICAGO - Giving teens 30 extra minutes to start their school day leads to more alertness in class, better moods, less tardiness, and even healthier breakfasts, a small study found.
芝加哥——一项小型研究发现：在开始一天的功课前给青少年多出30分钟的时间可以使他们在课堂上更机敏，有更好的情绪，反应不那么迟缓，而且甚至可以享用更健康的早餐。
Environmental issues such as noise and level of alertness may interfere with learning new behaviors. After identifying what helps and what hinders, increase the helpers and eliminate the rest.
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。当确定了什么是有帮助的，什么是有妨碍的后，增加有帮助的部分，排除其他部分。
Environmental issues such as noise and level of alertness may interfere with learning new behaviors. After identifying what helps and what hinders, increase the helpers and eliminate the rest.
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。当确定了什么是有帮助的，什么是有妨碍的后，增加有帮助的部分，排除其他部分。
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