ELI5- If calories are units of energy how does caffeine give you energy if it doesn’t contain calories?
In: Chemistry
Caffeine does not give you energy. Not even a little.
What it does is keep you from knowing that you are tired. You still are tired and you body still suffers the negative effects of it, but you can’t feel it anymore.
In addition if you drink too much caffeine too often, your body adjusts itself, so you only feel normal amounts of tired if you have caffeine in your system. If you don’t, like for example right after you wake up in the morning, you will find you are unable to fully awaken without caffeine.
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