caffeine
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.
Research on the benefits and risks of caffeine consumption has been mixed.
From The Wall Street Journal ● Jul. 25, 2026
Understanding exactly how caffeine affects the cardiovascular system is difficult.
From Science Daily ● Jul. 22, 2026
In the short term, caffeine may temporarily increase blood pressure, heart rate, blood sugar and alertness.
From Science Daily ● Jul. 22, 2026
Randomized trials, which are considered the most rigorous and reliable study design, have linked caffeine from coffee to a lower risk of atrial fibrillation.
From Science Daily ● Jul. 22, 2026
She needed some caffeine in her system before she called home to tell her parents she’d arrived.
From "When Dimple Met Rishi" by Sandhya Menon
