alertness
US /ə'lɜ:tnəs/
・UK /ə'lɜ:tnəs/
B1 中級
n. (u.)不可數名詞警戒：機敏
Scientific studies have suggested that drinking coffee can aid your alertness
影片字幕
大腦升級術！✅ 每天必做這兩件事，讓你越變越聰明？ ft. 安德魯．胡伯曼博士 (中英字幕) (如何讓大腦變強？► 每天做好這兩件事 ? - Dr. Andrew Huberman 安德魯．胡伯曼博士（中英字幕）)
- So when you or I decide we're going to learn something and really dig in, norepinephrine, which is adrenaline, is secreted in the brainstem and in the body, and it brings about a state of alertness.
是以，當你或我決定要學習一些東西並真正深入進去時，去甲腎上腺素，也就是腎上腺素，就會在腦幹和體內分泌出來，並帶來一種警覺狀態。
- But if you do those two things, you have alertness and focus, the acetylcholine and the norepinephrine converge to mark those synapses for change.
但如果你做了這兩件事，你有了警覺性和專注力，乙酰膽鹼和去甲腎上腺素就會匯聚到這些突觸上，為變化做標記。
多大的音量能殺死你？！ (How Much Loud Can Kill You?)
- respiratory systems, resulting in things like loss of concentration and alertness, depression, and vibration of internal organs.
呼吸系統，導致注意力不集中、警覺性下降、憂鬱，以及內臟器官振動。
- respiratory systems, resulting in things like loss of concentration and alertness, depression, and vibration of internal organs.
呼吸系統，導致注意力不集中、警覺性下降、憂鬱，以及內臟器官振動。
10種習慣，讓你（幾乎）擁有無限精力！ (10 HABITS FOR (ALMOST) LIMITLESS ENERGY)
- Tyrosine is an amino acid that boosts alertness and mental energy.
酪氨酸是一種能提高警覺性和精神能量的氨基酸。
- Tyrosine is an amino acid that boosts alertness and mental energy.
現在，下一種保健品是西伯利亞人参。
我的鄰居們！ (My neighbor hood)
- The park here is quite spacious and airy with a little green space, creating a feeling of relaxation and alertness from a new day.
這裡的公園相當寬敞，空氣清新，綠意盎然，給人一種放鬆的感覺，讓人從新的一天開始就精神抖擻。
- The park here is quite spacious and airy with a little green space, creating a feeling of relaxation and alertness from a new day.
此外，我家附近還有各種餐館、咖啡館和其他商店。
這部影片讓你充滿自信！✨ (THIS VIDEO WILL MAKE YOU CONFIDENT.)
- 2 cups of blueberries a day will improve your mood, your alertness, your energy levels, and guess what?
研究顯示，每天吃七到八份水果和蔬菜的人，生活滿意度最高。
- 2 cups of blueberries a day will improve your mood, your alertness, your energy levels, and guess what?
每天兩杯藍莓，能提升你的心情、警覺性、能量水準，還有什麼？
我不想拍這支睡眠不足的影片，但我還是拍了！ (I Didn't Want to Make This Sleep Deprivation Video (But I Did))
- So it's thought that the best time to drink coffee is mid-morning between 9.30 and 11.30 am because your cortisol levels naturally dip so you can bring in the caffeine to help boost alertness.
是以，人們認為喝咖啡的最佳時間是上午 9:30 至 11:30 之間，因為此時人體的皮質醇水準會自然下降，是以可以補充咖啡因，幫助提高警覺性。
- So it's thought that the best time to drink coffee is mid-morning, between 9:30 and 11:30 AM, because your cortisol levels naturally dip so you can bring in the caffeine to help boost alertness.
事實上，咖啡因在人體內存留的時間比很多人想象的要長。