The Science of Caffeine

What is the world's most popular drug?

• Sugar

• Nicotine

• Alcohol

• Caffeine

Which of the following is NOT a caffeine-infused product mentioned?

• Beef jerky

• Chocolate

• Energy drinks

• Gum

What happens when caffeine enters the body?

• It transforms into sugar.

• It immediately exits the body.

• It solidifies.

• It breaks up into three different yet very similar molecules.

What does caffeine block in the brain?

• Serotonin

• Dopamine

• Oxygen

• Adenosine receptors

What is the safe average dose of caffeine for adults?

• 100 milligrams

• 600 milligrams

• 200 milligrams

• 400 milligrams

How many eight-ounce cups of coffee are equivalent to 400 milligrams of caffeine?

• Five

• Three

• Ten

• Eight

What is one of the effects of theobromine, a metabolite of caffeine?

• Lowers body temperature

• Reduces muscle activity

• Decreases heart rate

• Increases oxygen and nutrient flow to the brain

What does paraxanthine enhance?

• Memory loss

• Hunger

• Sleepiness

• Body's athletic performance

At what dose does caffeine become toxic?

• Around 10 grams

• Around 20 grams

• Around 5 grams

• Around 15 grams

What is the effect of too much caffeine?

• Increased vision

• Loss of appetite

• Immediate sleepiness

• Jitters, anxiety, and discomfort