Do You Have a Threshold for Caffeine?

This week’s fun fact is dedicated to all those coffee drinkers who rely on caffeine’s energizing powers in their daily cup(s) of coffee.

Studies have found that the human body can only absorb up to 300 milligrams of caffeine at any given point in time. This is about 4 cups of coffee. If any more is consumed, it is simply cast off and provides no more stimulation (or energy).