iStockphoto / npr, Tiny Fox Lab
Caffeine is the most widely used psychoactive substance 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. – Tiny Fox Lab Facts
Preview photo credit: iStockphoto / npr
Source: https://www.mcgill.ca/oss/article/infographics-general-science/science-behind-worlds-most-popular-drug
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