caffeine

I need caffeine to wake up in the morning.

She drinks a lot of caffeine to stay awake during night shifts.

Caffeine can help improve focus and concentration.

Some people are sensitive to caffeine and experience jitters.

Energy drinks often contain high levels of caffeine.

Caffeine is a common ingredient in coffee, tea, and soda.

Too much caffeine consumption can lead to insomnia.

Some people experience headaches when they withdraw from caffeine.

Athletes sometimes use caffeine as a performance enhancer.

Caffeine can have both positive and negative effects on the body.

Who could possibly need that much caffeine?

I feel like I need some caffeine. Do you want anything?

Decaf is short for decaffeinated, meaning it doesn't have caffeine.

Green tea contains both caffeine and an organic compound known as catechin.

Technically, iced coffee can be even better because it has more caffeine.

Still you'll have some caffeine in your system for hours after that.

People often try to cut out caffeine or sugar or bread and carbs.

At night, do not drink coffee, or other drinks that contain the chemical caffeine.

One of the benefits to drinking coffee is the caffeine.

You may discover you don't need as much caffeine as you think you do.