IIRC coffee works by blocking adenosine receptors in the brain, so how do it perform in the early morning when there is little to none adenosine in the body? The spelling is probably wrong too …

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IIRC coffee works by blocking adenosine receptors in the brain, so how do it perform in the early morning when there is little to none adenosine in the body? The spelling is probably wrong too …

In: Biology

Adenosine is always present in your brain, in significant quantities, so there is always some to block.