Once it reaches the brain, caffeine interacts with the neurotransmitter adenosine. True or false?
Understand the Problem
The question asks whether caffeine interacts with the neurotransmitter adenosine once it reaches the brain. This requires knowledge of how caffeine affects brain chemistry.
Answer
True
True. Caffeine interacts with adenosine once it reaches the brain.
Answer for screen readers
True. Caffeine interacts with adenosine once it reaches the brain.
More Information
Caffeine's primary mechanism involves blocking adenosine receptors in the brain. Adenosine is a neurotransmitter that promotes relaxation and sleepiness. By blocking adenosine, caffeine increases alertness and reduces fatigue.
Tips
A common mistake is to think caffeine directly stimulates the brain. It primarily works by blocking adenosine, which then leads to increased activity of other neurotransmitters.
Sources
- Caffeine and the central nervous system: mechanisms of action ... - pubmed.ncbi.nlm.nih.gov
- Caffeine Effects on the Central Nervous System and Behavioral ... - ncbi.nlm.nih.gov
- How Caffeine Affects Your Brain - Driftaway Coffee - driftaway.coffee
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