Test Your Caffeine Knowledge! How well do you know about caffeine? Take this quiz to find out! See if you can answer all 11 questions correctly remus2009 published on November 01, 2023 Stacked 1/11 Which of the following drinks contains the highest amount of caffeine? Decaffeinated coffee Espresso Green tea Orange juice 2/11 Caffeine is classified as a: Stimulant Depressant Hallucinogen Sedative 3/11 What is the average half-life of caffeine in the human body? 5 hours 1 hour 10 hours 24 hours 4/11 Which of the following is a common symptom of caffeine withdrawal? Increased appetite Insomnia Headache Euphoria 5/11 Caffeine is naturally found in which of the following? Apples Carrots Coffee beans Bread 6/11 What is the recommended daily limit of caffeine consumption for an average adult? 500 milligrams 400 milligrams 300 milligrams 200 milligrams 7/11 Caffeine can be found in which of the following medications? Excedrin Benadryl Advil Tylenol 8/11 Which organ in the body metabolizes caffeine? Stomach Kidneys Liver Lungs 9/11 Caffeine has diuretic properties, meaning it: Increases appetite Promotes digestion Decreases heart rate Increases urine production 10/11 Which age group is more sensitive to the effects of caffeine? Children Teenagers Young adults Elderly 11/11 Which of the following is not a source of caffeine? Chocolate Tea Energy drinks Water