For many people, caffeine is the preferred pick-me-up that gets their day going and keeps them running, like putting gasoline into a car. But how does caffeine affect our brains, and how do our bodies process this beloved chemical?
Question 1 of 10
What percentage of Americans consume caffeine every day?
Question 2 of 10
What is caffeine's medical name?
Question 3 of 10
How many milligrams of caffeine does the average 6-ounce cup of coffee contain?
Question 4 of 10
What sleep-inducing chemical does caffeine block from binding to nerve cells?
Question 5 of 10
Which neurotransmitter, or chemical messenger, does caffeine stimulate?
Question 6 of 10
How long does it take your body to rid itself of just half the caffeine you consume?
Question 7 of 10
Which is not an effect of caffeine?
Question 8 of 10
How might caffeine help cure a headache?
Question 9 of 10
Which of these is a symptom of caffeine withdrawal?
Question 10 of 10