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alertness

NOUN
watchfulness
Synonyms


Example Sentences

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Several studies show that napping during shift work, where possible, is associated with reduced sleepiness and improved alertness.

From BBC Jul. 19, 2026

Today’s ice swimmers rave about the rush and subsequent feelings of alertness, contentment and energy.

From The Wall Street Journal Jul. 6, 2026

One every two hours was better than no walking, but researchers found a five-minute stroll each hour led to the biggest and most feasible improvement in productivity, mood and alertness.

From BBC Jun. 23, 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

“Get dressed,” he ordered her, congratulating himself on his alertness.

From "Catch-22" by Joseph Heller




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