alertness
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In a small study on people with insomnia, when they were given a false negative sleep score, those individuals reported sleepiness and fatigue, as well as lower levels of alertness and clear thinking.
From Slate ● Aug. 11, 2026
Because growth hormone influences the locus coeruleus, which plays a central role in maintaining alertness during the day, this newly identified system may also affect attention and other aspects of cognitive function.
From Science Daily ● Jul. 5, 2026
She kept jurors, lawyers and media on a strict schedule, with only two twenty-minute breaks per day and no lunch time to ensure maximum alertness.
From BBC ● May 15, 2026
Here, the very irregularity of the interior environment, including the concrete surfaces — richer and more textured than I expected — heightened my alertness.
From Los Angeles Times ● Apr. 22, 2026
Zooey had turned toward her with somewhat menacing alertness.
From "Franny and Zooey" by J. D. Salinger
