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. It blocks need of sleep receptors in the brain.
Our normal sleep cycle is controlled by producing a neurotransmitter. That transmitter gets picked up by receptors. When enough receptors get the transmitter, you feel tiered. Sleep clears out the transmitter and you feel awake.
Caffeine clogs the receptors without triggering them. So no matter how much of the neurotransmitter you have you don’t feel sleepy.
Nothing to do with “energy”. Just tricking our brains into not applying the breaks.
Obviously the stuff I said above is oversimplified.
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