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.

And more serious concerns such as a stroke need to be ruled out when dizziness or vertigo is accompanied by severe imbalance, double vision, slurred speech, weakness, numbness, trouble walking or decreased alertness.

From The Wall Street Journal • Apr. 15, 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

Once growth hormone enters the system, it activates the locus coeruleus, a brainstem region that controls alertness, attention, and cognitive function.

From Science Daily • Mar. 30, 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

If not for the alertness in his ocean-blue eyes, he would resemble, more than anything, a scarecrow that had come down from its stake.

From "The Mysterious Benedict Society" by Trenton Lee Stewart