Coffee is the most widely used psychoactive drug in the world. Caffeine works by competing with adenosine receptors in the brain. If adenosine is blocked by a caffeine molecule, then one’s feeling of exhaustion is lowered. – WTF Fun Facts
Source:Â https://www.mcgill.ca/oss/article/infographics-general-science/science-behind-worlds-most-popular-drug














