How does caffeine work in the brain?
A) By stimulating dopamine release
B) By interfering with glutamate release
C) By blocking serotonin receptors
D) By blocking adenosine receptors

Question

Quizplus · Accepted Answer

Caffeine primarily works by blocking adenosine receptors in the brain. Adenosine is a neurotransmitter that promotes sleep and relaxation. When caffeine blocks these receptors, it prevents adenosine from having its usual calming effects, leading to increased alertness and wakefulness.

How Does Caffeine Work in the Brain