Q I run on coffee and energy drinks. Can that actually increase my fatigue?
A It can. Caffeine does not remove fatigue; it defers your perception of it. Coffee late in the afternoon makes that night's deep sleep shallower and increases the next day's fatigue. The result is a loop: caffeine, shallow sleep, greater fatigue.
Detailed Answer
Caffeine can linger for more than eight hours depending on the person. Try stopping after 2 or 3 pm and compare your mornings over two weeks. Energy drinks add sugar as well, creating a sharp rise followed by a crash.
Korean Medicine Clinic Perspective
We do not insist that you quit caffeine. But deciding a single rule — "none after this hour" — already changes the depth of your sleep. As sleep deepens, the amount of caffeine you need naturally falls.
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