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.

Drinking more caffeine than that did not provide additional protection.

From Science Daily • May 13, 2026

Once stimulation becomes too high, whether from stress, anxiety, or too much caffeine, performance begins to decline.

From Science Daily • May 13, 2026

Excessive caffeine can also interfere with sleep and increase anxiety, both of which may negatively affect brain health.

From Science Daily • May 13, 2026

The amount of caffeine can vary widely depending on how coffee is prepared.

From Science Daily • May 13, 2026

They were laying off sugar or carbs or caffeine or meat or dairy, but maybe a little butter was fine now and then.

From "We Are Okay" by Nina LaCour