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
“She is eating on her own, her energy and alertness have noticeably improved, and she has become much more feisty during feedings.”
From Los Angeles Times ● Jul. 28, 2026
Several studies show that napping during shift work, where possible, is associated with reduced sleepiness and improved alertness.
From BBC ● Jul. 19, 2026
The research provides new insight into how sleep loss affects the brain and suggests that caffeine's benefits may extend beyond simply increasing alertness.
From Science Daily ● May 30, 2026
HUNTER’S EYE When I was alone, and could hear Angelo’s footsteps no more, I fell into that state of extreme alertness I described earlier.
From "The Omnivore's Dilemma" by Michael Pollan
