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.

Afterward, caffeine was provided in drinking water for unrestricted consumption over a seven-day period.

From Science Daily • May 30, 2026

By showing that caffeine can restore specific neural pathways affected by sleep deprivation, the study provides new insight into potential targeted approaches for addressing cognitive decline.

From Science Daily • May 30, 2026

The drink's bright emerald colour has attracted the TikTok generation, and the milder caffeine hit from its green tea powder is suited to health-conscious drinkers who want good sleep.

From BBC • May 28, 2026

At the other end, robusta beans, known for their high levels of caffeine, are mass harvested by machines.

From BBC • May 28, 2026

It’s 5:48 in the morning, I’m thinking of making an outfit for my clock radio, and I’m so full of caffeine that my scalp itches.

From "Me Talk Pretty One Day" by David Sedaris