Quiz – Caffeine Timing Mastery

Question 1 of 5

1. Question

What does caffeine block to create that alert feeling?

Adenosine receptors

Correct Incorrect Correct answer

Melatonin receptors

Correct Incorrect Correct answer

Cortisol receptors

Correct Incorrect Correct answer

Dopamine receptors

Correct Incorrect Correct answer

Question 2 of 5

2. Question

What is the approximate half-life of caffeine given in the capsule?

Roughly five hours

Correct Incorrect Correct answer

About thirty minutes

Correct Incorrect Correct answer

Around twelve hours

Correct Incorrect Correct answer

Nearly two days

Correct Incorrect Correct answer

Question 3 of 5

3. Question

What caffeine cutoff time do most sleep scientists suggest, per the capsule?

2 to 3 PM

Correct Incorrect Correct answer

6 to 7 PM

Correct Incorrect Correct answer

9 to 10 PM

Correct Incorrect Correct answer

Right before bed

Correct Incorrect Correct answer

Question 4 of 5

4. Question

How does the capsule say you should set your personal cutoff?

Reverse-engineer it from your target sleep time

Correct Incorrect Correct answer

Copy a friend’s schedule exactly

Correct Incorrect Correct answer

Drink caffeine until you feel tired

Correct Incorrect Correct answer

Base it only on your body weight

Correct Incorrect Correct answer

Question 5 of 5

5. Question

Beyond adenosine, what does the capsule say afternoon fatigue often stems from?

The circadian dip around 2 PM

Correct Incorrect Correct answer

A lack of caffeine tolerance

Correct Incorrect Correct answer

Excess morning light exposure

Correct Incorrect Correct answer

Too much deep sleep the night before

Correct Incorrect Correct answer