You may be surprised at how much you know.
Caffeine is a stimulant.
As a stimulant, caffeine in excess can have many side effects. In moderation, caffeine is a mild stimulant that increases urination and the heart rate and rhythm. Excessive intake can cause restlessness, insomnia, heart irregularities, and delirium. Decaffeinated coffee and teas have no caffeine. False is the right answer here.