Q&A: How did we outpace the big bang?
The Naked Scientists Podcast
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How Do Drugs Know Where the Pain Is?
How do painkillers know where the pain is in my body? How does the pill know where it hurts? Different molecules have got different shapes, different structures. Drugs and medicine are passing by almost everything until they reach a specific receptor. The drug molecule fits the crevice on a protein that it sticks.
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