Asprin is derived from the bark of the willow tree.<p>From Wikipedia: <i>&quot;The therapeutic properties of willow tree bark have been known for at least 2,400 years, with Hippocrates prescribing it for headaches&quot;</i><p>&quot;By definition, alternative medicine has either not been proved to work, or been proved not to work. You know what they call alternative medicine that&#x27;s been proved to work? Medicine;&quot; (From Tim Michin&#x27;s poem &quot;Storm&quot;)
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