How Caffeine Affects Your Brain - Driftaway Coffee
Caffeine Increases Alertness by Blocking Adenosine. Adenosine is a neurotransmitter that makes us tired. It limits brain stimulation by blocking other neurotransmitters that excite the brain. During the day, our bodies create adenosine; when we sleep at night, adenosine levels decrease. Neurotransmitters Affected by Caffeine. Adenosine Adenosine is the main neurotransmitter affected by caffeine and this is the mechanism through which all the other effects occur. Adenosine is a substance a ‘purine nucleoside that is produced in the brain as our neurons fire. Caffeine achieves many of its effects by blocking the activity of adenosine, a neurotransmitter that affects almost every bodily system. Because one of the primary actions of adenosine is to make us tired or sleepy, caffeine, by blocking the uptake of adenosine, keeps us from feeling the effects of fatigue.
Caffeine - Wikipedia
Caffeine also causes the release of dopamine in the dorsal striatum and nucleus accumbens core a substructure within the ventral striatum. Jan 05, 2016 Effects of Caffeine on Neurotransmission. by. While all three activate the neurotransmitter dopamine via the striatum, caffeine acts indirectly on the.