Caffeine affects the brain by attaching to adenosine receptors on nerve cells. Adenosine is a natural chemical that builds up during the day and signals the brain to slow down and prepare for rest. When caffeine reaches these receptors, it occupies the same spots where adenosine would normally bind. Because caffeine blocks the receptor, adenosine can no longer deliver its slowing signal. With the calming effect blocked, the neurons remain active and responsive. This increased activity also influ
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986K views · 11K reactions | How does coffee work? What even IS caffeine? 樂☕️ Caffeine works primarily by blocking adenosine, a neurotransmitter that makes you feel tired and sleepy. By preventing adenosine from binding to its receptors in the brain, caffeine promotes alertness and energy. This stimulant also triggers the release of adrenaline and dopamine, increasing heart rate, breathing, and feelings of well-being! #science #science #coffee | Learning with Lyrics | Facebook
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