Why does coffee make me tired?

Although coffee’s caffeine content makes it a stimulant, some people feel tired after they drink a cup. Learn about why coffee could make a person feel tired here.

Caffeine content of different types of coffee

Coffee is probably the most popular source of caffeine. The caffeine content of a cup of coffee can vary considerably depending on the brewing method, the type of bean, and the quantity of coffee grounds that a person uses. Learn how much caffeine different types and brands of coffee contain here.