Here’s why. You may feel sleepy after drinking coffee because caffeine blocks adenosine receptors in the brain. Adenosine is an important brain chemical that impacts our sleep-wake cycles.

“For healthy adults, caffeine consumption is relatively safe, but for some vulnerable populations, caffeine consumption could ...

“Caffeine blocks adenosine receptors which promote sleep, which then increases production of dopamine, noradrenaline and glutamate - these are all neurotransmitters that play a role in cognitive ...

Learn how caffeine affects Parkinson's disease prevention and treatment. New research uncovers both protective benefits and treatment limitations.

Caffeine blocks the adenosine receptors in your nerves, so your brain perceives less pain and fatigue. This process allows you to keep going longer, so caffeine is especially useful for one ...

us feel awake is that “caffeine blocks the brain’s receptors to adenosine – which works like a neurotransmitter carrying signals around the brain. The message could be: ‘You are very ...

When the adenosine is continually blocked from binding to its receptors ... have before you ever drank coffee." But caffeine does more than just block adenosine. It can also pump up your levels ...

Dopamine’s effects in the brain are mediated by postsynaptic D1 and D2 receptors. Adenosine A1 and A2A receptors are uniquely positioned to counteract the excessive stimulation of dopamine receptors ...

But did you know there’s a better way to time your caffeine for maximum alertness and energy? It all comes down to understanding the adenosine clearance window. Let’s break it down in simple ...

“That is a response to that lack of vasoconstriction.” Caffeine is a psychostimulant that works by blocking the adenosine receptors in the brain, which are linked to sleep, memory and learnin ...