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.
If nighttime recovery becomes less effective, the person may feel more tired the following day and turn to even more caffeine for help.
From Science Daily ● Sep. 22, 2026
Another major finding from caffeine research is that responses vary considerably from person to person.
From Science Daily ● Sep. 22, 2026
Sleep researchers often recommend avoiding caffeine for at least six hours before bedtime.
From BBC ● Sep. 17, 2026
Dr Lindsay Browning, a psychologist and sleep expert, says the evidence suggests caffeine might not just stop you dozing off but can affect the quality of sleep as well.
From BBC ● Sep. 17, 2026
I had been cultivating a headache for the last few hours—the kind of headache that felt like it was going to pop my eyes right out of my skull—and caffeine usually helped.
From "Darius the Great Is Not Okay" by Adib Khorram
