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.
Studies show that doses as low as 40mg-60mg may improve mood and alertness in middle-aged adults who normally consume little or no caffeine.
From Science Daily • May 13, 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
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
I proceeded with exceptional alertness and deliberation, not only to preserve my life but also to give him the right signal.
From "Life of Pi" by Yann Martel
