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.

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

Each morning, participants completed cognitive tests and questionnaires designed to assess sleep quality, alertness, and other health-related effects.

From Science Daily • Feb. 4, 2026

These findings suggest that a single control system may coordinate both attention and basic bodily functions such as fluid flow, heart rate, and alertness.

From Science Daily • Jan. 20, 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

They had the alertness of deer in the forest, ready to take flight at the least provocation.

From "The Journey of Little Charlie" by Christopher Paul Curtis