“ Why is it that my wife can drink 5 cups of coffee in a day and go to sleep with ease, while I only need to drink one cup at 5pm to be wide awake in the middle of the night?”. This is a question, or dilemma you might call it, that patients often ask their healthcare professional.
The amount of caffeine consumed in beverages varies enormously and is dependent, for example, on the strength of the drink, and the amount consumed. Here is a basic guideline for the average amount of caffeine per serving in popular beverages.