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.

Only participants consuming caffeine experienced reduced anxiety along with better attention and alertness.

From Science Daily • May 3, 2026

Some did their exercises at times to match their body clock chronotype - the natural predisposition to morning or evening alertness - while others did the opposite.

From BBC • Apr. 14, 2026

Because growth hormone works through brain systems that control alertness, it may also influence how clearly you think and how focused you feel.

From Science Daily • Mar. 30, 2026

They do so by irritating the linings of the nose and lungs, triggering a reflex that increases breathing rate and blood flow, fostering alertness.

From Los Angeles Times • Jan. 12, 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