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.

Scientists found that consuming caffeine at night can increase impulsive behavior, raising the likelihood of risky or uncontrolled actions.

From Science Daily • Mar. 31, 2026

Even though both sexes had similar levels of caffeine in their systems, females displayed much higher levels of impulsive behavior.

From Science Daily • Mar. 31, 2026

Both brands’ 12-ounce cans carry the same 200 milligrams of caffeine, too.

From The Wall Street Journal • Mar. 25, 2026

It was a group powered by caffeine, Johnston said, and their coffee came in handy when they needed a liquid prop to do quick demos with the prototypes to test their absorbency.

From The Wall Street Journal • Mar. 20, 2026

He was like an angry machine, shaking as if he’d just eaten those caffeine pills my mother used to take to stay skinny.

From "Please Ignore Vera Dietz" by A.S. King