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.

Across those studies, caffeine drinkers had a 6%-16% lower dementia risk compared to non-drinkers, with one to three cups of coffee appearing to provide the greatest benefit.

From Science Daily • May 13, 2026

Freshly brewed coffee made from whole beans may contain very different caffeine levels compared to instant coffee, and preparation methods can also affect cholesterol levels.

From Science Daily • May 13, 2026

Coffee and tea contain other compounds beyond caffeine that may benefit the brain as well.

From Science Daily • May 13, 2026

In that group, consuming about 250mg-300mg of caffeine per day, equal to roughly two to three cups of coffee, was linked to a 35% lower dementia risk.

From Science Daily • May 13, 2026

Lacey says, “Is it that weird feeling you get from so much caffeine that, like, your heart isn’t beating so much as your whole body is beating?”

From "Paper Towns" by John Green